Sheet Pan Frittata – A Delicious and Easy Recipe Perfect for Cooking and Easy Recipes

When zucchini is flourishing in the garden, nothing beats a vibrant, flavorful sheet pan zucchini frittata. This recipe is a favorite for its simplicity, versatility, and ability to feed a crowd, making it ideal for meal prep or a big brunch gathering. With a few simple ingredients and straightforward steps, this dish delivers big on taste and ease, perfect for anyone looking to enjoy cooking and easy recipes all in one.

Fresh zucchini and onions ready for slicing

Choosing the Right Ingredients for the Frittata

The key to a perfect frittata starts with selecting the right zucchini. Small to medium-sized zucchinis work best because they contain fewer seeds and less water, which helps avoid a soggy texture. Thinly slicing or dicing the zucchini ensures it cooks evenly and blends beautifully into the egg mixture.

Onions add a nice depth of flavor, whether you choose yellow or red onions—whatever you have on hand works perfectly. For the cheese, hard cheeses like provolone, cheddar, or Swiss are recommended. Avoid using fresh mozzarella or other cheeses with high moisture content because they can make the eggs runny.

Diced cheese and onions prepared for sautéing

Sautéing the Vegetables for Maximum Flavor

Start by sautéing the zucchini and onions in a bit of olive oil over medium heat. Adding a pinch of salt during this step is crucial because it layers the seasoning and draws out the natural sweetness of the vegetables. Cook them until they develop a nice golden color and soften, breaking down slightly to release their flavors.

Once sautéed, set the vegetables aside to cool. This step prevents the eggs from cooking prematurely when mixed and helps maintain the perfect texture for the frittata.

Sautéed zucchini and onions in olive oil

Preparing the Sheet Pan and Egg Mixture

Using a nonstick sheet pan is a great choice for this recipe. Lightly oil the pan and place it in the oven as it preheats to 375°F (190°C). Preheating the pan helps prevent the eggs from sticking and promotes even cooking. If you’re using a stainless steel pan, line it with parchment paper to avoid sticking issues.

In a large bowl, crack about 15 eggs. While that might sound like a lot, remember this recipe serves 12 to 16 people, making it perfect for feeding a crowd or prepping meals for the week. Whisk the eggs vigorously with a splash of milk and plenty of freshly grated Parmesan cheese for an extra burst of flavor.

Next, fold in the cooled sautéed zucchini and onions, along with your choice of diced cheddar, provolone, or Swiss cheese. Season the mixture with salt and pepper to taste, and give it a thorough stir to combine everything evenly.

Whisking eggs with milk and cheese in a large bowl

Baking the Frittata to Perfection

Pour the egg and vegetable mixture into the preheated sheet pan and bake in the oven at 375°F for about 30 minutes. The frittata is done when it’s golden brown on top and cooked through the center. This sheet pan method makes it easy to prepare a large quantity without the hassle of making individual frittatas.

This dish is fantastic whether you’re meal prepping or hosting a big brunch. It pairs wonderfully with ciabatta rolls, a fresh salad, or even fruit. For a fun twist, try it on a toasted bagel with a schmear of cream cheese—trust the flavor combo, it’s a winner!

Golden brown sheet pan zucchini frittata fresh out of the oven

Tips for Success and Variations

  • Vegetable Choices: Feel free to swap or add other vegetables like yellow squash or bell peppers. Just remember to sauté them first and adjust the cooking time if needed.
  • Cheese Selection: Hard cheeses work best to keep the frittata firm and flavorful. Avoid watery cheeses to prevent runny eggs.
  • Seasoning: Layer your seasoning throughout the cooking process, starting when sautéing the veggies and finishing when mixing the eggs for a balanced flavor.
  • Pan Prep: Preheating the pan with olive oil is key to preventing sticking and achieving a perfect crust.

This recipe is a wonderful example of cooking and easy recipes coming together to make a dish that’s both simple and impressive. It’s a fantastic way to use up garden-fresh zucchini and enjoy a hearty, crowd-pleasing meal.

Sliced sheet pan zucchini frittata served on a plate

Give this sheet pan zucchini frittata a try for your next brunch or meal prep session. It’s a delicious, easy recipe that will quickly become a staple in your kitchen!

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