Sunday Morning Breakfast Casserole

Prep: 15 min Cook: 50 min Serves: 8 Cuisine: American

A hearty Sunday morning casserole combining crispy hash browns, savory sausage, melted cheese, and fluffy eggs, perfect for family brunch or weekend gatherings.

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Ingredients

  • 3 cups frozen hash browns
  • 1 pound sausage
  • 1 medium onion, chopped
  • 12 eggs
  • 2 cups milk
  • 4 cups grated sharp Cheddar cheese
  • garlic salt
  • pepper

Instructions

  1. Cover the bottom of a greased 9 x 13-inch dish with frozen hash browns.
  2. Brown the sausage and chopped onion in a skillet; drain excess fat.
  3. Spread the cooked sausage and onion mixture over the hash browns in the dish.
  4. Sprinkle grated sharp Cheddar cheese evenly over the sausage mixture.
  5. In a bowl, beat the eggs and milk together; season with garlic salt and pepper to taste.
  6. Pour the egg and milk mixture over the layered ingredients in the dish.
  7. Refrigerate the casserole overnight to let flavors meld.
  8. Bake uncovered at 350°F for 50 minutes until golden and set.

Tips & Substitutions

For a flavorful twist, try adding diced bell peppers or mushrooms to the sausage and onion mixture. If you prefer a lighter version, substitute half-and-half for the milk. You can also replace the sharp Cheddar with a blend of your favorite cheeses. This casserole can easily be customized with additional veggies or spices to suit your taste.

Serving Suggestions

This casserole is perfect for brunch and pairs beautifully with fresh fruit or a side salad for a complete meal. Consider serving it alongside a slice of the Rocky Road Ice Cream Pie for a sweet finish. For those who enjoy a little heat, a side of spicy salsa can also enhance the flavors.

Storage & Reheating

Store any leftover casserole in an airtight container in the refrigerator for up to 3 days. To reheat, simply place individual portions in the microwave or reheat the entire dish in the oven at 350°F for about 20 minutes until heated through. This makes for a quick and easy breakfast option throughout the week.

Nutrition & Diet Analysis (per serving)

Each serving of Sunday Morning Breakfast Casserole contains roughly 1188 calories, with 19g protein, 187g carbohydrates, and 41g fat. It is an excellent source of vitamin C (109% of the Daily Value), iron (58% of the Daily Value), and calcium (52% of the Daily Value), and a good source of vitamin D. Note that it is relatively high in sodium, at 1183mg per serving (51% of the Daily Value).

1188 kcal 59% DV
Protein Fat Carbs

Macronutrients

Protein 19.4g 39% DV
Total Fat 41.5g 53% DV
Carbs 187.1g 68% DV
Fiber 7.4g 27% DV
Sugar 61.5g 100% DV

Electrolytes

Sodium 1182.8mg 51% DV
Potassium 1221.7mg 26% DV
Cholesterol 154.5mg 52% DV

Vitamins & Minerals

Vitamin A 279.9mcg 31% DV
Vitamin C 98.1mg 100% DV
Vitamin D 2.1mcg 10% DV
Calcium 678.2mg 52% DV
Iron 10.4mg 58% DV
Diet fit High-fiber
Contains Milk Egg

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 ahead of time?

Yes, this casserole is perfect for preparing the night before. Simply layer all ingredients in the baking dish, cover with plastic wrap, and refrigerate overnight. This allows the flavors to meld beautifully, ensuring a delicious breakfast.

Can I use fresh potatoes instead of frozen hash browns?

Absolutely! If you prefer using fresh potatoes, peel and shred about 3 cups of potatoes, then rinse and dry them before layering. Fresh potatoes will take a bit longer to cook, so you may need to increase the baking time slightly.

Is it possible to make this recipe vegetarian?

Yes, you can easily make this casserole vegetarian by omitting the sausage. Substitute with sautéed vegetables like spinach, zucchini, or mushrooms for added flavor and texture. You can also use plant-based sausage alternatives if desired.

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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