Overnight Everything Bagel Breakfast Casserole

This easy make-ahead breakfast is loaded with delicious bites of everything bagels baked in a flavorful egg scramble with sausage, peppers, and a three-cheese combination.

Course Breakfast
Cuisine American
Keyword Breakfast Casserole Recipe, Everything Bagel Breakfast Casserole, Overnight Breakfast Casserole, Overnight Everything Bagel Casserole
Prep Time 25 minutes
Cook Time 55 minutes
Total Time 1 hour 20 minutes
Servings 8
Calories 619 kcal
Author Stephanie


  • 6 everything bagels lightly toasted
  • 8 large eggs
  • 1 cup half and half
  • Salt/pepper to taste
  • 2 tablespoons Dijon mustard
  • 1/3 teaspoon cayenne pepper
  • ½ cup Parmesan shredded
  • 1 cup grated cheddar divided
  • 8 oz. cooked sausage links diced
  • ½ bell pepper diced
  • 8 oz. cream cheese
  • 1 cup tater tots
  • Green Onions to garnish
US Customary - Metric


  1. Break the bagels into bite-sized pieces and place into a buttered 9x13 casserole dish.
  2. In a large bowl, crack the eggs. Add the half and half, mustard, cayenne pepper, and salt/pepper. Whisk briskly for 1 minute.
  3. Pour the egg mixture over the bagel pieces, try to cover each one.
  4. Add the Parmesan cheese and ½ cup cheddar cheese to the casserole dish. Use a spoon to gently toss the casserole mixture.
  5. Cut the cream cheese into 14 squares.
  6. Distribute the top of the casserole with the cream cheese, sausage, bell peppers, and tator tots.
  7. Top with the remaining half of cheddar cheese.
  8. Cover and refrigerate for 4 hours or overnight. The longer it sits, the better/moister it will be.
  9. Bake, covered, at 350 degrees for 40 minutes.
  10. Remove the cover and bake for 15 more minutes.
  11. Let cool for 10 minutes. Serve with coffee and enjoy!

Recipe Notes

*Lightly toasted bagels are able to absorb the custard much better, but still have all of the flavor that fresh bagels have. Stale bagels can also be used but I prefer fresh and toasted!

Nutrition Facts
Overnight Everything Bagel Breakfast Casserole
Amount Per Serving
Calories 619 Calories from Fat 306
% Daily Value*
Fat 34g52%
Saturated Fat 15g94%
Cholesterol 246mg82%
Sodium 1061mg46%
Potassium 373mg11%
Carbohydrates 49g16%
Fiber 2g8%
Sugar 1g1%
Protein 27g54%
Vitamin A 1210IU24%
Vitamin C 11.1mg13%
Calcium 276mg28%
Iron 2.6mg14%
* Percent Daily Values are based on a 2000 calorie diet.