Healthy Egg Casserole

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Every Sunday morning in our house used to be a frantic scramble – literally! Trying to get a healthy and satisfying breakfast on the table before the day’s activities began often felt like a marathon. Pancakes were a hit, but felt a bit too indulgent for every week. Oatmeal was quick, but sometimes lacked the excitement factor. Then, I stumbled upon the magic of the egg casserole. This wasn’t just any egg bake; it was a game-changer. Packed with veggies, lean protein, and bursting with flavor, it became an instant family favorite. Even my picky eaters devoured it! What I love most is the versatility – you can adapt it to whatever vegetables you have on hand and it’s just as delicious hot out of the oven as it is reheated throughout the week. If you’re searching for a wholesome, crowd-pleasing, and incredibly easy breakfast (or brunch, or even dinner!) option, look no further. This Healthy Egg Casserole is about to become your new kitchen staple.

Ingredients

  • Eggs: The star of the show! Eggs are the protein powerhouse of this casserole, providing structure and richness. We’ll need a good dozen to make a hearty dish.
  • Milk (or Dairy-Free Alternative): Adds moisture and creaminess to the casserole. You can use whole milk, 2%, skim milk, or plant-based options like almond milk, oat milk, or soy milk for a dairy-free version.
  • Cooked Protein (Optional but Recommended): Boosts the protein content and flavor. Consider pre-cooked options like crumbled sausage (turkey or pork), diced ham, bacon bits, or shredded chicken. For a vegetarian version, try cooked lentils or crumbled tempeh.
  • Cheese (Shredded): Adds cheesy goodness and flavor! Sharp cheddar, Monterey Jack, mozzarella, or a blend all work wonderfully. For a lower-fat option, use part-skim mozzarella or reduce the amount.
  • Vegetables (Chopped): The heart of the “healthy” in this casserole! Choose your favorites – spinach, bell peppers, onions, mushrooms, broccoli, zucchini, tomatoes, asparagus all work beautifully. Frozen vegetables, thawed and drained, are also a convenient option.
  • Onion and Garlic (Diced): Aromatic base that adds depth of flavor to the casserole. Yellow or white onion works well, and fresh garlic is always best, but garlic powder can be used in a pinch.
  • Olive Oil (or Cooking Spray): Used for sautéing vegetables and greasing the baking dish to prevent sticking. Olive oil adds a healthy fat and subtle flavor, but any cooking oil or spray will do.
  • Salt and Pepper: Essential seasonings to enhance the flavors of all the ingredients. Adjust to your taste.
  • Optional Spices/Herbs: Elevate the flavor profile! Consider adding dried herbs like oregano, thyme, basil, or red pepper flakes for a little heat. Fresh herbs like parsley or chives for garnish are also a nice touch.

Instructions

  1. Preheat Your Oven and Prepare Baking Dish: Start by preheating your oven to 375°F (190°C). While the oven is heating, lightly grease a 9×13 inch baking dish with olive oil or cooking spray. This will prevent the casserole from sticking and make serving easier. Having the oven preheated ensures even cooking from the start.
  2. Sauté the Vegetables (Flavor Foundation): Heat a tablespoon of olive oil in a large skillet over medium heat. Add the diced onion and cook until softened, about 3-5 minutes. Then, add the minced garlic and cook for another minute until fragrant (be careful not to burn the garlic). Next, add your chosen vegetables (like bell peppers, mushrooms, broccoli, etc.) to the skillet. Sauté them until they are tender-crisp, usually around 5-7 minutes, depending on the vegetables you’re using. Sautéing the vegetables beforehand helps to soften them and releases their flavors, making them more enjoyable in the casserole. If using spinach, add it at the very end and cook until just wilted.
  3. Whisk the Eggs and Milk (Custard Base): In a large bowl, crack all the eggs. Whisk them together thoroughly until the yolks and whites are fully combined and slightly frothy. This ensures a smooth and even texture for the casserole. Pour in the milk (or dairy-free alternative) and whisk again to incorporate it into the egg mixture. The milk adds moisture and creates a custard-like consistency.
  4. Season the Egg Mixture (Flavor Boost): Season the egg and milk mixture with salt and pepper. Start with about 1 teaspoon of salt and ½ teaspoon of black pepper, and adjust to your taste. This is also the time to add any optional spices or dried herbs you are using, such as oregano, thyme, basil, or red pepper flakes. Taste a tiny drop of the mixture (before adding any other ingredients) to ensure the seasoning is to your liking.
  5. Combine Ingredients (Layer of Flavor): Add the sautéed vegetables and cooked protein (if using) to the large bowl with the egg mixture. Gently stir everything together to evenly distribute the vegetables and protein throughout the egg mixture. Avoid over-stirring, as this can make the casserole tougher.
  6. Pour into Baking Dish (Ready to Bake): Pour the combined egg mixture with vegetables and protein into the prepared baking dish. Spread it out evenly to ensure even cooking.
  7. Top with Cheese (Cheesy Goodness): Sprinkle the shredded cheese evenly over the top of the egg casserole. The cheese will melt and create a delicious, golden-brown crust as it bakes.
  8. Bake to Golden Perfection (Cooking Time): Place the baking dish in the preheated oven and bake for 30-40 minutes, or until the casserole is set and golden brown on top. To check for doneness, insert a knife into the center of the casserole; it should come out clean when the casserole is cooked through. The center should be set and not jiggly.
  9. Rest Before Serving (Final Touches): Once baked, remove the casserole from the oven and let it rest for 5-10 minutes before serving. This allows the casserole to set further and makes it easier to slice and serve. Resting also helps to distribute the moisture evenly throughout the casserole.
  10. Garnish and Serve (Enjoy!): Garnish with fresh herbs like chopped parsley or chives, if desired. Slice the Healthy Egg Casserole into squares or portions and serve hot. Enjoy this delicious and nutritious meal!

Nutrition Facts

(Per Serving, approximately 1/8 of the casserole)

  • Servings: 8
  • Calories: Approximately 250-350 kcal (depending on ingredients – cheese, protein, etc.)
  • Protein: 20-25g

Note: Nutrition facts are estimates and can vary based on specific ingredients and brands used. For precise nutritional information, use a nutrition calculator with your specific ingredients.

Preparation Time

  • Prep Time: 20-25 minutes (chopping vegetables, sautéing, whisking eggs)
  • Cook Time: 30-40 minutes (baking in the oven)
  • Total Time: Approximately 50-65 minutes

This Healthy Egg Casserole is wonderfully efficient when it comes to preparation. Most of the time is hands-off baking time, allowing you to focus on other morning tasks or simply relax while a delicious and wholesome meal is being prepared. The active prep time primarily involves chopping vegetables and a quick sauté, making it a relatively quick dish to assemble, especially considering the generous servings it yields.

How to Serve

This Healthy Egg Casserole is incredibly versatile and can be served in various ways for different meals and occasions:

  • Breakfast or Brunch Staple:
    • Serve warm slices of the casserole as a satisfying and protein-packed breakfast or brunch.
    • Pair with a side of fresh fruit salad or berries for a balanced and refreshing meal.
    • Offer with whole-wheat toast or muffins for extra carbohydrates if desired.
  • Lunch or Light Dinner Option:
    • Enjoy a slice of egg casserole for a light yet fulfilling lunch or dinner.
    • Serve alongside a simple green salad dressed with a light vinaigrette to complement the richness of the casserole.
    • Consider adding a cup of soup for a heartier meal, especially in colder weather.
  • Make-Ahead Meal Prep:
    • Bake the entire casserole on the weekend and portion it out for breakfasts or lunches throughout the week.
    • Reheat individual slices in the microwave or oven until warmed through.
    • This is a fantastic way to ensure you have healthy and convenient meals readily available.
  • Potlucks and Gatherings:
    • Egg casserole is an excellent dish to bring to potlucks, brunches, or family gatherings.
    • It travels well and can be served warm or at room temperature.
    • Its crowd-pleasing nature and ease of serving make it a popular choice for sharing.
  • Customizable Serving Options:
    • Offer a variety of toppings or sauces on the side to allow individuals to customize their servings.
    • Consider hot sauce, salsa, avocado slices, sour cream or Greek yogurt, or fresh herbs for topping.
    • This allows for personalization and caters to different taste preferences.

Additional Tips for the Best Healthy Egg Casserole

  1. Don’t Overcook the Vegetables: When sautéing vegetables, aim for tender-crisp. Overcooked vegetables can become mushy in the casserole. They will continue to cook in the oven.
  2. Use a Variety of Vegetables: Experiment with different combinations of vegetables to add variety in flavor, texture, and nutrients. Consider seasonal vegetables for the freshest taste.
  3. Thoroughly Whisk the Eggs: Whisking the eggs well ensures a light and fluffy texture in the casserole. Don’t just lightly stir them; aim for a slightly frothy consistency.
  4. Don’t Overbake: Overbaking can lead to a dry and rubbery casserole. Bake until just set in the center and golden brown on top. The knife test is a good indicator of doneness.
  5. Let it Rest: Allowing the casserole to rest after baking is crucial. It helps the casserole set properly and makes it easier to slice and serve without it falling apart.
  6. Make it Ahead: Prepare the casserole the night before and store it, unbaked, in the refrigerator. Bake it in the morning for a stress-free breakfast or brunch. You may need to add a few extra minutes to the baking time if starting from cold.
  7. Customize with Protein: Get creative with your protein choices! Beyond the usual sausage or ham, try adding cooked chicken, ground beef, chorizo, or even vegetarian options like black beans or chickpeas for a different twist.
  8. Freeze for Future Meals: Egg casserole freezes beautifully! Bake the casserole, let it cool completely, then cut it into individual portions. Wrap each portion tightly in plastic wrap and then foil, or place in freezer-safe bags. Freeze for up to 2-3 months. Reheat directly from frozen in the oven or microwave.

Frequently Asked Questions (FAQs) About Healthy Egg Casserole

Q1: Can I make this egg casserole vegetarian?

A: Absolutely! Making this casserole vegetarian is incredibly easy. Simply omit any meat protein and focus on using a variety of vegetables. You can also add vegetarian protein sources like cooked lentils, crumbled tempeh, or even extra cheese for added richness and protein. Consider adding plant-based sausage crumbles as well for a heartier vegetarian option.

Q2: Can I make this egg casserole dairy-free?

A: Yes, you can easily make this casserole dairy-free. Substitute the milk with a dairy-free alternative like almond milk, oat milk, soy milk, or coconut milk (unsweetened). For the cheese, you can use dairy-free shredded cheese alternatives, which are widely available in most supermarkets. Look for brands that melt well for the best results in the casserole.

Q3: How long does egg casserole last in the refrigerator?

A: Properly stored, cooked egg casserole will last for 3-4 days in the refrigerator. Ensure it is cooled completely before storing it in an airtight container in the fridge. This makes it perfect for meal prepping breakfasts or lunches for the week.

Q4: Can I freeze egg casserole?

A: Yes, egg casserole freezes very well! This is one of its greatest advantages for meal prepping and batch cooking. To freeze, bake the casserole as directed, let it cool completely, then cut it into individual portions. Wrap each portion tightly in plastic wrap and then in foil, or place in freezer-safe bags. It can be frozen for up to 2-3 months.

Q5: How do I reheat frozen egg casserole?

A: You can reheat frozen egg casserole directly from frozen. For best results, reheat in the oven at 350°F (175°C) for about 20-30 minutes, or until heated through. You can also microwave individual slices for a quicker reheat, but the texture may be slightly softer. Microwave in 1-2 minute intervals, checking for warmth.

Q6: Can I add different types of cheese to this casserole?

A: Definitely! Feel free to experiment with different types of cheese to customize the flavor of your casserole. Sharp cheddar, Monterey Jack, mozzarella, Gruyere, pepper jack, or even feta cheese all work wonderfully. You can use a single type of cheese or a blend of your favorites to create unique flavor profiles.

Q7: What vegetables work best in egg casserole?

A: Many vegetables work well in egg casserole! Some popular and delicious options include: spinach, bell peppers (any color), onions, mushrooms, broccoli florets, zucchini, asparagus, tomatoes (diced or sun-dried), and kale. Root vegetables like diced potatoes or sweet potatoes can also be used but may require longer sautéing or pre-cooking to ensure they are tender.

Q8: Can I make egg casserole the night before and bake it in the morning?

A: Yes, you can absolutely prepare the egg casserole mixture the night before. Assemble all the ingredients in the baking dish, cover it tightly with plastic wrap or foil, and store it in the refrigerator overnight. In the morning, simply preheat the oven and bake as directed. You might need to add a few extra minutes to the baking time since the casserole will be starting from cold. This is a great time-saving tip for busy mornings!

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Healthy Egg Casserole


  • Author: Sarah

Ingredients

  • Eggs: The star of the show! Eggs are the protein powerhouse of this casserole, providing structure and richness. We’ll need a good dozen to make a hearty dish.
  • Milk (or Dairy-Free Alternative): Adds moisture and creaminess to the casserole. You can use whole milk, 2%, skim milk, or plant-based options like almond milk, oat milk, or soy milk for a dairy-free version.
  • Cooked Protein (Optional but Recommended): Boosts the protein content and flavor. Consider pre-cooked options like crumbled sausage (turkey or pork), diced ham, bacon bits, or shredded chicken. For a vegetarian version, try cooked lentils or crumbled tempeh.
  • Cheese (Shredded): Adds cheesy goodness and flavor! Sharp cheddar, Monterey Jack, mozzarella, or a blend all work wonderfully. For a lower-fat option, use part-skim mozzarella or reduce the amount.
  • Vegetables (Chopped): The heart of the “healthy” in this casserole! Choose your favorites – spinach, bell peppers, onions, mushrooms, broccoli, zucchini, tomatoes, asparagus all work beautifully. Frozen vegetables, thawed and drained, are also a convenient option.
  • Onion and Garlic (Diced): Aromatic base that adds depth of flavor to the casserole. Yellow or white onion works well, and fresh garlic is always best, but garlic powder can be used in a pinch.
  • Olive Oil (or Cooking Spray): Used for sautéing vegetables and greasing the baking dish to prevent sticking. Olive oil adds a healthy fat and subtle flavor, but any cooking oil or spray will do.
  • Salt and Pepper: Essential seasonings to enhance the flavors of all the ingredients. Adjust to your taste.
  • Optional Spices/Herbs: Elevate the flavor profile! Consider adding dried herbs like oregano, thyme, basil, or red pepper flakes for a little heat. Fresh herbs like parsley or chives for garnish are also a nice touch.

Instructions

  1. Preheat Your Oven and Prepare Baking Dish: Start by preheating your oven to 375°F (190°C). While the oven is heating, lightly grease a 9×13 inch baking dish with olive oil or cooking spray. This will prevent the casserole from sticking and make serving easier. Having the oven preheated ensures even cooking from the start.
  2. Sauté the Vegetables (Flavor Foundation): Heat a tablespoon of olive oil in a large skillet over medium heat. Add the diced onion and cook until softened, about 3-5 minutes. Then, add the minced garlic and cook for another minute until fragrant (be careful not to burn the garlic). Next, add your chosen vegetables (like bell peppers, mushrooms, broccoli, etc.) to the skillet. Sauté them until they are tender-crisp, usually around 5-7 minutes, depending on the vegetables you’re using. Sautéing the vegetables beforehand helps to soften them and releases their flavors, making them more enjoyable in the casserole. If using spinach, add it at the very end and cook until just wilted.
  3. Whisk the Eggs and Milk (Custard Base): In a large bowl, crack all the eggs. Whisk them together thoroughly until the yolks and whites are fully combined and slightly frothy. This ensures a smooth and even texture for the casserole. Pour in the milk (or dairy-free alternative) and whisk again to incorporate it into the egg mixture. The milk adds moisture and creates a custard-like consistency.
  4. Season the Egg Mixture (Flavor Boost): Season the egg and milk mixture with salt and pepper. Start with about 1 teaspoon of salt and ½ teaspoon of black pepper, and adjust to your taste. This is also the time to add any optional spices or dried herbs you are using, such as oregano, thyme, basil, or red pepper flakes. Taste a tiny drop of the mixture (before adding any other ingredients) to ensure the seasoning is to your liking.
  5. Combine Ingredients (Layer of Flavor): Add the sautéed vegetables and cooked protein (if using) to the large bowl with the egg mixture. Gently stir everything together to evenly distribute the vegetables and protein throughout the egg mixture. Avoid over-stirring, as this can make the casserole tougher.
  6. Pour into Baking Dish (Ready to Bake): Pour the combined egg mixture with vegetables and protein into the prepared baking dish. Spread it out evenly to ensure even cooking.
  7. Top with Cheese (Cheesy Goodness): Sprinkle the shredded cheese evenly over the top of the egg casserole. The cheese will melt and create a delicious, golden-brown crust as it bakes.
  8. Bake to Golden Perfection (Cooking Time): Place the baking dish in the preheated oven and bake for 30-40 minutes, or until the casserole is set and golden brown on top. To check for doneness, insert a knife into the center of the casserole; it should come out clean when the casserole is cooked through. The center should be set and not jiggly.
  9. Rest Before Serving (Final Touches): Once baked, remove the casserole from the oven and let it rest for 5-10 minutes before serving. This allows the casserole to set further and makes it easier to slice and serve. Resting also helps to distribute the moisture evenly throughout the casserole.
  10. Garnish and Serve (Enjoy!): Garnish with fresh herbs like chopped parsley or chives, if desired. Slice the Healthy Egg Casserole into squares or portions and serve hot. Enjoy this delicious and nutritious meal!

Nutrition

  • Serving Size: one normal portion
  • Calories: 350
  • Protein: 25g