Cheese offers extra flavor and up the creamy factor. I love to use soft cheeses like goat cheese. Sharp cheddar and Parmesan are delicious as well.
You can stir up to one cup of grated or crumbled cheese directly into the egg mixture, or reserve some for topping the frittata. While I live for golden, bubbling cheese on pizza and lasagna, don’t aim for a golden top when it comes to frittatas. Which brings me to my next point.
Don’t overcook your frittata
Keep an eye on your frittata while it’s in the oven. Bake until the eggs are puffed and opaque, and the center of the frittata jiggles just a bit when you give it a gentle shimmy.
The frittata will continue cooking once you remove it from the oven due to residual heat. Overcooked eggs smell like sulphur and have a dry, spongey texture—not good!
How to scale this recipe
My recipes calls for twelve eggs. You can halve this recipe and use a smaller skillet (say, 8″) or baking dish. Smaller frittatas will finish baking earlier, so adjust accordingly and keep an eye on them.
