An egg casserole is light and fluffy, with a flavor and texture reminiscent of a well-prepared omelet. Adding meat and vegetables to the casserole complements the eggs and makes the dish more filling with the extra protein and fiber content. If you are going to be short on time, opt for a make-ahead egg casserole. You can prepare the casserole up to two days in advance, cutting out all the work except for placing it in the oven when mealtime is near.
Crack the eggs into a mixing bowl and add the milk, using a whisk to blend the two ingredients. When whisking, whip the mixture in quick, circular motions for best results.
Add the bread cubes and stir the mixture with a wooden spoon. Continue stirring until the bread cubes are saturated with the milk and egg mixture. Stir the spinach, crumbled bacon and half of the shredded cheese into the mixture.
Prepare the baking pan by coating its interior in a thin, even layer of cooking spray. Pour the egg mixture into the baking pan and top with the remaining shredded cheese.
Cover the baking pan with aluminum foil and refrigerate for up to 48 hours.
Preheat an oven to 350 degrees Fahrenheit when you are ready to cook and serve the casserole.
Remove the aluminum foil from the baking pan and place the casserole into the oven. Bake for approximately 50 minutes or until the cheese on top puffs up. This recipe yields 12 servings.