Overnight ham and egg casserole, overnight brunch egg bake and overnight Tex-Mex egg bake are some recipes for egg casseroles that can be prepped the night before. An overnight casserole does not cook overnight, but rather is refrigerated overnight and cooked immediately before serving.
To make Taste of Home's recipe for overnight ham and egg casserole, first grease an 8-inch square baking dish. Layer 4 cups shredded hash brown potatoes, 1 cup cubed fully cooked ham, 1 4-ounce can green chilis and 1/2 cup each shredded Monterey jack and cheddar cheese. In a large bowl, whisk together 6 eggs, 1 12-ounce can evaporated milk and 1/4 teaspoon pepper. Pour the egg mixture over the layered ingredients. Cover and refrigerate overnight.
Remove from the refrigerator 30 minutes before baking. Preheat oven to 350 degrees Fahrenheit. Bake the casserole uncovered for 1 hour or until an inserted knife comes out clean. Allow to rest for a few minutes before serving.
Pillsbury's overnight brunch bake uses a similar method but omits potatoes and adds onions, mushrooms and red pepper. For this recipe, the layered meat, cheese and vegetable mix is covered in a blend of 8 eggs, 1/2 cup flour, 2 tablespoons parsley and 1 3/4 cups milk. Refrigerate this casserole overnight and bake for just under 1 hour at 350 degrees Fahrenheit.