Overnight Egg Casserole
A comforting overnight egg casserole combining creamy eggs, sharp Cheddar cheese, and buttery bread for a hearty breakfast or brunch. Its savory flavors and easy preparation make it perfect for feeding a crowd or enjoying a make-ahead meal on busy mornings.
Ingredients
Instructions
- Put bread slices on the bottom of a rectangular casserole dish.
- Beat eggs in a bowl and add milk, dry mustard, salt, and pepper to the egg mixture.
- Pour the egg mixture over the bread slices in the casserole dish.
- Top with shredded Cheddar cheese.
- Cover and refrigerate overnight.
- Bake uncovered at 350°F for 45 minutes before serving.
Tips & Substitutions
To enhance the flavor, consider adding sautéed vegetables like bell peppers or spinach to the casserole. For a lighter version, use whole grain bread and low-fat milk. If you don't have dry mustard, you can substitute with Dijon mustard, but reduce the amount slightly. This dish can also be customized by using different types of cheese, such as Swiss or mozzarella.
Serving Suggestions
Serve the casserole warm, garnished with fresh herbs like chives or parsley for a pop of color. It pairs beautifully with a side of mixed greens or fruit salad for a balanced breakfast or brunch. For a heartier meal, consider serving it alongside crispy bacon or sausage. This dish is perfect for weekend gatherings or holiday brunches.
Storage & Reheating
Leftover egg casserole can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, simply place individual portions in the microwave for 1-2 minutes or bake in the oven at 350°F until heated through, about 15-20 minutes. Ensure it's heated evenly to maintain the texture.
Nutrition & Diet Analysis (per serving)
Each serving of Overnight Egg Casserole contains roughly 617 calories, with 10g protein, 114g carbohydrates, and 15g fat. It is an excellent source of vitamin C (33% of the Daily Value) and protein (20% of the Daily Value), and a good source of calcium and vitamin A. Note that it is relatively high in sodium, at 1654mg per serving (72% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I prepare this casserole the same day I want to serve it?
Yes, you can prepare the casserole the same day, but it’s best to let it sit for at least 30 minutes to absorb the egg mixture before baking. However, for optimal flavor and texture, refrigerating it overnight is recommended.
Can I freeze the leftover casserole?
Yes, you can freeze the leftover egg casserole. Allow it to cool completely, then cut it into portions and wrap each piece in plastic wrap and aluminum foil. It can be frozen for up to 2 months. To reheat, thaw overnight in the fridge and bake until warmed through.
What type of bread works best for this recipe?
You can use any bread you prefer, but sturdy breads like sourdough or French bread hold up best when soaked in the egg mixture. Whole grain or rye bread can also be a great option for added flavor and texture. Just ensure it’s cut into thick slices.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).