5 from 2 votes
Slice of Cousin Betty's Easy Overnight Breakfast Treat Casserole | A Reinvented Mom #overnightbreakfastcasserole
Cousin Betty's Best: Easy Overnight Breakfast Treat Casserole
Prep Time
20 mins
Cook Time
1 hr
8 hrs
Total Time
1 hr 20 mins

Break out of the breakfast casserole rut. Surprise ingredients separate this make-ahead overnight breakfast casserole from the pack.

Course: Breakfast, Brunch
Cuisine: American
Keyword: easy breakfast casserole, make ahead breakfast casserole, overnight breakfast casserole
Servings: 12
Calories: 263 kcal
Author: Lori1
  • 4 slices bread
  • 1 tsp. dry mustard
  • 5 eggs
  • 1 1/2 cups milk
  • 1/2 tsp. salt
  • 1/4 tsp. ground black pepper
  • 1 pound breakfast sausage cooked
  • 1 can cream of mushroom soup undiluted
  • 2 cups shredded cheddar cheese divided use
  • 1/2 tsp. oregano
  1. Lightly coat a 9x13 casserole dish with non-stick spray.
  2. Cube the bread and place in the prepared casserole dish.
  3. Sprinkle dry mustard over cubed bread.
  4. Mix eggs, milk, salt and pepper together in a small bowl. Pour over bread.
  5. Sprinkle 1 cup cheese over egg & bread mixture.
  6. Layer cooked sausage over eggs, bread & cheese.
  7. Top with undiluted mushroom soup.
  8. Cover with remaining cup of shredded cheese.
  9. Sprinkle oregano over top of casserole.
  10. Cover and refrigerate overnight.
  11. Preheat oven to 350 degrees. Remove casserole from refrigerator and set on counter until oven is ready.
  12. Cover dish with foil and bake for 1 hour.
Nutrition Facts
Cousin Betty's Best: Easy Overnight Breakfast Treat Casserole
Amount Per Serving
Calories 263 Calories from Fat 171
% Daily Value*
Total Fat 19g 29%
Saturated Fat 8g 40%
Cholesterol 118mg 39%
Sodium 525mg 22%
Potassium 197mg 6%
Total Carbohydrates 6g 2%
Sugars 2g
Protein 14g 28%
Vitamin A 7.3%
Vitamin C 0.3%
Calcium 20.1%
Iron 7.3%
* Percent Daily Values are based on a 2000 calorie diet.