Spinach Feta Frittata

This quick and easy Spinach Feta Frittata made with baby spinach, scallions, feta cheese and eggs is a great breakfast to make ahead for the week!

This breakfast frittata couldn’t be easier! It’s great to make ahead and meal prep for the week or to serve for breakfast, any day of the week. It comes together quickly and starts on the stove and finishes in the oven. For color I love to top it with some fresh tomatoes, and more scallions and feta cheese.

• 4 large whole eggs
• 1 cup egg whites
• 1 teaspoon olive oil
• 1/2 cup red onion, finely chopped
• 3 medium scallions, chopped, plus more for topping
• 1 1/2 cups fresh chopped spinach
• 2 ounces crumbled feta, plus optional more for topping
• 2 tablespoons Parmigiano-Reggiano, grated
• 1/2 teaspoon kosher salt, and freshly ground pepper
• diced grape or cherry tomatoes, optional for topping