9 X 13 Egg Casserole

Prep: 15 min Cook: 60 min Serves: 8 Cuisine: American

A hearty overnight breakfast casserole combining eggs, sausage, cheese, and bread, perfect for feeding a crowd or weekend brunch with rich flavors and comforting textures.

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Ingredients

  • 1 dozen eggs, beaten
  • 6 slices white bread, cubed
  • 1 teaspoon dry mustard
  • 2 cups Colby grated cheese
  • 4 cups milk
  • 1 teaspoon salt
  • 2 pounds mild sausage, browned and drained

Instructions

  1. Make the casserole the night before by combining eggs, milk, dry mustard, salt, bread cubes, cooked sausage, and grated cheese.
  2. Mix well and refrigerate overnight.
  3. Preheat oven to 350°F.
  4. Bake the casserole uncovered for 1 hour.
  5. Check for doneness with a toothpick inserted in the center.

Tips & Substitutions

For a lighter version, consider using egg whites instead of whole eggs and low-fat milk. You can also substitute the Colby cheese with cheddar or a dairy-free cheese alternative. Adding vegetables like bell peppers or spinach can enhance flavor and nutrition. If you're short on time, you can prepare the mixture in the morning and bake it right away, but letting it sit overnight allows the flavors to meld.

Serving Suggestions

This egg casserole is perfect for brunch and can be served alongside fresh fruit or a light salad. Pair it with a refreshing beverage like orange juice or coffee. For a complete meal, serve with toast or pastries such as Good Morning Muffins. It's a versatile dish that works well for gatherings or family breakfasts.

Storage & Reheating

Leftover 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 a preheated oven at 350°F until heated through. For best results, cover with foil to prevent drying out.

Nutrition & Diet Analysis (per serving)

Each serving of 9 X 13 Egg Casserole contains roughly 239 calories, with 8g protein, 45g carbohydrates, and 3g fat. It is a good source of protein (15% of the Daily Value), iron (11% of the Daily Value), and calcium (10% of the Daily Value). Note that it is relatively high in sodium, at 1339mg per serving (58% of the Daily Value).

239 kcal 12% DV
Protein Fat Carbs

Macronutrients

Protein 7.7g 15% DV
Total Fat 2.8g 4% DV
Carbs 45.1g 16% DV
Fiber 1.3g 5% DV
Sugar 1.7g 3% DV

Electrolytes

Sodium 1338.7mg 58% DV
Potassium 160.5mg 3% DV
Cholesterol 35.4mg 12% DV

Vitamins & Minerals

Vitamin A 17.6mcg 2% DV
Vitamin C 0.2mg
Vitamin D 0mcg
Calcium 125.4mg 10% DV
Iron 1.9mg 11% DV
Diet fit Under 400 cal Low-fat
Contains Milk Egg Wheat/Gluten

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 use different types of bread for this casserole?

Yes, you can use whole wheat, sourdough, or even croissants for a unique twist on the texture and flavor. Just keep in mind that different breads may absorb the egg mixture differently, so adjust the soaking time if necessary.

Is it possible to make this casserole gluten-free?

Absolutely! You can substitute the white bread with gluten-free bread or even use a combination of gluten-free grains, such as quinoa or rice, to create a similar texture. Just ensure that all other ingredients are gluten-free as well.

How can I add more flavor to the casserole?

Consider adding herbs like chives or parsley, or spices such as paprika or black pepper for additional flavor. You can also mix in sautéed onions, mushrooms, or bell peppers. These additions will enhance the overall taste and make the dish even more enjoyable.

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).

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