Sausage, Egg, Cheese Breakfast Casserole
A hearty breakfast casserole featuring sausage, eggs, cheese, and mushrooms, baked to perfection—ideal for weekend mornings or brunch gatherings with rich, savory flavors.
Ingredients
Instructions
- Place the seasoned croutons on the bottom of a 9 x 12-inch greased baking pan.
- Sprinkle shredded Cheddar cheese over the croutons.
- Add cooked and drained sausage evenly over the cheese.
- In a bowl, beat together eggs, milk, and dry mustard.
- Stir in drained mushrooms and undiluted cream of mushroom soup into the egg mixture.
- Pour the egg mixture over all the ingredients in the pan.
- Refrigerate overnight to allow flavors to meld.
- Bake uncovered at 300°F (150°C) for 1 1/2 hours.
- Let the casserole set for 5 minutes before serving.
Tips & Substitutions
For an extra flavor boost, consider adding chopped bell peppers or onions to the sausage before browning. You can also substitute the Cheddar cheese with Monterey Jack or Pepper Jack for a different taste. If you're short on time, use pre-cooked sausage or omit the mushrooms for a simpler version. This casserole is versatile and can be adapted to suit your preferences.
Serving Suggestions
This breakfast casserole pairs wonderfully with fresh fruit or a simple green salad for a balanced meal. For a heartier breakfast, serve it alongside biscuits or toast. It also works well with a side of salsa or avocado for added flavor. Consider serving with a refreshing beverage like orange juice or coffee to complete your breakfast spread.
Storage & Reheating
Store any leftovers in an airtight container in the refrigerator for up to 3-4 days. To reheat, place slices in the microwave for a minute or until heated through. Alternatively, you can warm individual portions in the oven at 350°F (175°C) for about 10-15 minutes. This keeps the texture nice and fluffy.
Nutrition & Diet Analysis (per serving)
Each serving of Sausage, Egg, Cheese Breakfast Casserole contains roughly 1064 calories, with 42g protein, 114g carbohydrates, and 50g fat. It is an excellent source of vitamin D (102% of the Daily Value), protein (84% of the Daily Value), and calcium (79% of the Daily Value), and a good source of potassium and dietary fiber. Note that it is relatively high in sodium, at 1465mg per serving (64% 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 make this casserole ahead of time?
Yes, you can prepare the casserole the night before and refrigerate it overnight. This allows the flavors to meld beautifully. Simply bake it in the morning for a delicious, hot breakfast. Just remember to adjust the baking time if it's coming straight from the fridge.
What can I substitute for milk in this recipe?
If you need a non-dairy option, you can substitute the milk with almond milk or oat milk. For a richer flavor, consider using half-and-half or a dairy-free cream alternative. Just note that these substitutions may slightly alter the texture and richness of the casserole.
Is it possible to freeze this casserole?
Absolutely! You can freeze the unbaked casserole for up to 2 months. Just make sure to cover it tightly with plastic wrap and aluminum foil. When ready to bake, thaw it in the refrigerator overnight and then bake as directed. This makes for a convenient breakfast option on busy mornings.
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).