Do Ahead Breakfast Casserole
A hearty make-ahead breakfast casserole combining sausage, cheese, and herbs, perfect for weekend brunches or holiday gatherings, offering comforting flavors and easy preparation.
Ingredients
Instructions
- Place the herbed croutons on the bottom of a buttered 8 x 11-inch or 9 x 13-inch dish.
- Top with most of the shredded Cheddar cheese, then layer browned and drained sausage over the cheese.
- Beat eggs with 2 1/4 cups of milk and dry mustard until well combined.
- Pour the egg mixture over the sausage and sprinkle with the remaining cheese.
- Refrigerate overnight to allow flavors to meld.
- Next morning, mix the cream of mushroom soup with 2 1/4 cups of milk and pour over the casserole.
- Bake at 300°F (150°C) for 1 1/2 hours until cooked through and golden.
Tips & Substitutions
For an even richer flavor, consider using a mix of cheeses, such as Monterey Jack or Pepper Jack. If you prefer a vegetarian option, swap the sausage for sautéed vegetables like bell peppers and onions. To save time, use pre-cooked sausage or crumbled breakfast sausage. This casserole can also be prepared using gluten-free croutons for those with dietary restrictions.
Serving Suggestions
This hearty dish pairs beautifully with fresh fruit or a side salad for a balanced breakfast. Consider serving with a dollop of sour cream or a drizzle of hot sauce for added flavor. For a complete brunch experience, serve alongside drinks like mimosas or a rich coffee. You can also browse more American recipes for additional breakfast ideas.
Storage & Reheating
Leftover breakfast 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 a minute or two, or reheat the entire casserole in the oven at 350°F (175°C) for about 20-30 minutes until warmed through.
Nutrition & Diet Analysis (per serving)
Each serving of Do Ahead Breakfast Casserole contains roughly 1209 calories, with 38g protein, 158g carbohydrates, and 47g fat. It is an excellent source of calcium (83% of the Daily Value), protein (76% of the Daily Value), and vitamin A (50% of the Daily Value), and a good source of dietary fiber and potassium. Note that it is relatively high in sodium, at 1553mg per serving (68% 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 breakfast casserole ahead of time?
Absolutely! This casserole is perfect for making ahead. Prepare it the night before, refrigerate, and bake it the next morning. This allows the flavors to meld beautifully, making it an ideal dish for a busy day or special occasion.
Can I freeze the breakfast casserole?
Yes, you can freeze the casserole before baking. Assemble it as directed, cover tightly with plastic wrap and foil, and freeze for up to 2 months. When ready to bake, thaw overnight in the refrigerator, then bake as instructed. This is a great way to have a homemade breakfast ready at a moment's notice.
What can I substitute for cream of mushroom soup?
If you don't have cream of mushroom soup on hand, you can make your own by combining sour cream or Greek yogurt with sautéed mushrooms and a bit of chicken or vegetable broth. Alternatively, use a can of cream of chicken or cream of celery soup for a different flavor profile.
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).