Description
Easy Potatoes O’Brien Breakfast Casserole Recipe is a quick, cheesy, and delicious morning meal packed with crispy Potatoes O’Brien, fluffy eggs, savory sausage, colorful peppers, and melty cheddar cheese. This hearty breakfast casserole delivers comforting homemade flavor perfect for busy mornings, brunch gatherings, or holiday breakfasts.
Ingredients
1 bag frozen Potatoes O’Brien
8 large eggs
1 cup milk
1 pound breakfast sausage
1 1/2 cups cheddar cheese, shredded
1/2 cup mozzarella cheese, shredded
1/2 teaspoon garlic powder
1/2 teaspoon onion powder
1 teaspoon salt
1/4 teaspoon black pepper
2 green onions, sliced
Butter for greasing baking dish
Instructions
1. Preheat the oven to 375 degrees Fahrenheit.
2. Grease a 9×13-inch baking dish lightly with butter.
3. Cook breakfast sausage in a skillet over medium heat until browned and fully cooked.
4. Drain excess grease from the sausage.
5. Spread frozen Potatoes O’Brien evenly into the prepared baking dish.
6. Top the potatoes with cooked sausage.
7. Sprinkle cheddar cheese and mozzarella cheese evenly over the mixture.
8. Whisk eggs, milk, garlic powder, onion powder, salt, and black pepper in a large bowl until smooth.
9. Pour the egg mixture evenly over the casserole ingredients.
10. Bake for 35 to 40 minutes until the eggs become fully set and the top turns golden brown.
11. Garnish with sliced green onions before serving warm.
Notes
Thaw the Potatoes O’Brien slightly for more even cooking.
Breakfast bacon or diced ham also works well instead of sausage.
Pepper jack cheese adds a spicy flavor twist.
Prepare the casserole the night before for an easy make-ahead breakfast.
Store leftovers covered in the refrigerator for up to 4 days.