
This fluffy egg casserole is perfect for busy mornings or serving a crowd. Add your favorite meats, vegetables or cheeses to create an egg casserole you will love!
Preheat oven to 375° with a rack in the center of the oven. Generously grease a 9x13 baking dish with softened butter.
In a large bowl, use a whisk or immersion blender to combine the eggs, cottage cheese, melted butter, ½ teaspoon salt, and ¼ teaspoon black pepper. The mixture should be well combined. If some curds of cottage cheese remain, that's fine.
Sprinkle the meat, vegetables, and cheese evenly around the bottom of the greased baking dish. Note: I reserve some of the cheese to add to the top of the eggs near the end of cook time. Pour the egg mixture over the meat and vegetables.
Bake until the eggs are puffed and set, approximately 25-35 minutes. Beginning checking at 25 minutes*, then every few minutes until the center is no longer wet. A minute or two before you pull it from the oven, top with additional cheese. Serve immediately.