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4 from 43 votes

Easy Cheesy Southwest Breakfast Casserole

Easy Cheesy Southwest Breakfast Casserole is an easy to prepare gluten-free breakfast win! A secret ingredient packs a punch of protein to start your day!
Course Breakfast
Cuisine American
Keyword casserole, cheese, potatoes, sausage
Prep Time 5 minutes
Cook Time 45 minutes
Total Time 50 minutes
Servings 6
Author Renee Pajestka


  • 2 cups frozen O'Brien Style with peppers and onions Hash Brown Potatoes, thawed
  • 1 cup small curd cottage cheese
  • 8 ounces fully cooked turkey breakfast sausage chopped into small pieces
  • 1 cup shredded sharp cheddar cheese divided
  • 1/2 cup shredded Pepper-jack cheese
  • 1/2 cup finely chopped onion
  • 6 large eggs beaten
  • Salt and pepper to taste
  • Sour cream for garnish
  • Sliced green onions for garnish


  • Preheat oven to 375 degrees F. Spray an 8" x 8" baking dish with cooking spray and set aside.
  • In large bowl, combine all ingredients. Pour mixture into prepared baking dish and spread evenly.
  • Top the casserole with the reserved cheddar cheese.
  • Bake in oven for 40-45 minutes or until set and golden brown on top.
  • Allow to sit for 10-15 minutes before cutting in squares.