Fluffy sheet-pan frittata with spring vegetables, feta and herbs, baked for easy slicing and festive brunch service.
# What You'll Need:
→ Vegetables
01 - 1 cup asparagus, trimmed and cut into 1-inch pieces
02 - 1 cup cherry tomatoes, halved
03 - 1 cup red and/or yellow bell peppers, diced
04 - 1 cup baby spinach, roughly chopped
05 - 1/2 cup red onion, thinly sliced
→ Eggs & Dairy
06 - 12 large eggs
07 - 1/2 cup whole milk
08 - 1 cup crumbled feta cheese (or goat cheese)
09 - 1/4 cup grated Parmesan cheese
10 - 2 tablespoons olive oil
→ Herbs & Seasonings
11 - 2 tablespoons fresh chives, finely chopped
12 - 2 tablespoons fresh parsley, chopped
13 - 1 teaspoon salt
14 - 1/2 teaspoon freshly ground black pepper
15 - 1/4 teaspoon smoked paprika (optional)
# How to Make It:
01 - Preheat the oven to 400°F. Line a rimmed 18x13-inch sheet pan with parchment paper or lightly coat with olive oil to prevent sticking.
02 - Crack the eggs into a large mixing bowl, add the whole milk, salt, black pepper and smoked paprika, then whisk until the mixture is smooth and slightly frothy.
03 - Fold the crumbled feta, grated Parmesan, chives and parsley into the egg mixture until evenly distributed.
04 - Heat the olive oil in a large skillet over medium heat. Add the asparagus, diced bell peppers and sliced red onion and sauté for 3 to 4 minutes until just tender.
05 - Add the chopped spinach to the skillet and cook for about 1 minute until wilted; remove from heat and allow the vegetables to cool slightly.
06 - Spread the sautéed vegetables in an even layer across the prepared sheet pan, then scatter the halved cherry tomatoes evenly over the top.
07 - Pour the egg, cheese and herb mixture evenly over the vegetables, ensuring thorough distribution so every portion contains vegetables and cheese.
08 - Transfer the sheet pan to the oven and bake for 22 to 25 minutes, or until the eggs are puffed, golden on top and set in the center when gently shaken.
09 - Allow the frittata to rest for 5 minutes out of the oven, then slice into eight squares and serve warm or at room temperature.
