Creating this Italian Sausage and Pepper Skillet is a straightforward process that involves a few simple steps:

1. Heat the Skillet:
   In a large skillet, heat the olive oil over medium heat until shimmering.
2. Cook the Sausage:
   Add the sliced sausage to the skillet. Cook until browned, about 5-7 minutes, ensuring that all sides are evenly cooked.
3. Add Vegetables:
   Stir in the sliced onions and bell peppers. Cook for approximately 5 minutes or until the vegetables are soft and slightly caramelized.
4. Incorporate Garlic and Seasoning:
   Add the minced garlic and Italian seasoning to the skillet. Cook for another 2 minutes, allowing the flavors to meld together.
5. Season the Dish:
   Season with salt and pepper to taste, stirring well to ensure the spices are evenly distributed.
6. Serve and Garnish:
   Serve the skillet warm, garnished with fresh basil if desired.