Follow these step-by-step instructions for perfect cucumber rounds every time. The process is straightforward and focuses on proper preparation to achieve the best texture and flavor.

Step 1: Prepare the Spinach

This is the most critical step for a perfect filling. Place the frozen spinach in a microwave-safe bowl and heat it according to the package directions until it’s completely thawed. Alternatively, you can thaw it overnight in the refrigerator. Once thawed, transfer the spinach to a fine-mesh sieve. Using the back of a spoon or a spatula, press down firmly on the spinach, pushing out as much water as you can. For best results, take the pressed spinach and place it in the center of a clean kitchen towel or several layers of heavy-duty paper towels. Gather the ends and twist, squeezing relentlessly until no more water comes out. You should be left with a small, compact ball of very dry spinach. This step is non-negotiable for a thick, creamy filling.

Step 2: Prepare the Creamy Feta Base

In a medium-sized mixing bowl, place your softened cream cheese. It must be at room temperature to avoid lumps. Using a hand mixer on low speed or a sturdy spatula, beat the cream cheese until it is smooth and creamy. Add the crumbled feta cheese, minced garlic, chopped fresh dill, fresh lemon juice, and black pepper. Continue to mix until all the ingredients are well combined. The mixture should be creamy, but it’s okay to have some small chunks of feta remaining for texture.

Step 3: Incorporate the Spinach

Add the super-dry, chopped spinach to the cream cheese and feta mixture. Use your spatula to fold the spinach into the cheese base, ensuring it is evenly distributed throughout. Scrape down the sides of the bowl to make sure everything is incorporated. At this point, taste the filling. Feta varies in saltiness, so you may or may not need to add a pinch of salt. Adjust seasoning as needed.

Step 4: Prepare the Cucumber Slices

Thoroughly wash and dry your English cucumbers. There is no need to peel them, as the dark green skin adds beautiful color and nutrients. Using a sharp knife or a mandoline slicer, slice the cucumbers into rounds that are approximately ½-inch thick. This thickness is important—too thin and they will become flimsy and break under the weight of the filling; too thick and the cucumber-to-filling ratio will be off. Arrange the cucumber slices on a large platter or baking sheet in a single layer. If you notice any excess moisture on the surface of the slices, gently pat them dry with a paper towel.

Step 5: Assemble the Cucumber Rounds

Now for the fun part! You can assemble the rounds in two ways. For a quick and rustic look, simply use a small spoon or a cookie scoop to place a dollop of the spinach and feta filling onto the center of each cucumber slice. For a more polished, professional presentation, transfer the filling to a piping bag fitted with a large star tip (like a Wilton 1M). Pipe a beautiful rosette of filling onto each cucumber slice.

Step 6: Garnish and Chill

For an extra touch of elegance, you can garnish your finished cucumber rounds. A sprinkle of paprika, a tiny sprig of fresh dill, or a small piece of sun-dried tomato on top looks fantastic. Once assembled, it’s best to chill the rounds in the refrigerator for at least 15-20 minutes before serving. This allows the filling to firm up slightly and the flavors to meld together.