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make ahead sausage sourdough breakfast casserole in baking dish
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5 from 3 votes

Make Ahead Sausage Sourdough Breakfast Casserole

Make ahead sausage sourdough breakfast casserole is loaded with cubes of sourdough bread, sausage, eggs and a mix of cheddar and pepper jack cheese. It's perfect for your holiday breakfast or brunch!
Course Breakfast
Cuisine American
Keyword sausage breakfast casserole
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings 12
Calories 302kcal
Author Dee


  • 1 pound breakfast sausage
  • 1 tablespoon dried minced onions
  • 1 teaspoon Italian seasoning
  • 1 teaspoon sea salt
  • ½ teaspoon pepper
  • 6 eggs
  • 1 ½ cups milk
  • 6 slices sourdough bread, cut into large squares
  • 1 cup shredded cheddar cheese
  • 1 cup shredded pepper jack cheese


  • Crumble sausage into a large frying pan, season with minced onions and Italian seasoning, and cook until brown and slightly crisp
  • Drain sausage on a paper towel-lined plate, and set aside
  • In a medium mixing bowl, whisk the eggs, milk, salt and pepper together
  • Place the cut bread evenly in a lightly greased 9 x 13-inch baking dish, and top with sausage and shredded cheese
  • Pour egg mixture evenly over the top, cover, and refrigerate overnight
  • The next morning, remove cover, and bake in a 350-degree oven for 45 minutes, or until casserole is heated through
  • Top with extra shredded cheese, if desired


Calories: 302kcal | Carbohydrates: 20g | Protein: 18g | Fat: 16g | Saturated Fat: 6g | Cholesterol: 162mg | Sodium: 753mg | Potassium: 222mg | Sugar: 2g | Vitamin A: 315IU | Vitamin C: 0.5mg | Calcium: 216mg | Iron: 2.1mg