Baked Mac and Cheese Hash Browns
Ingredients
- 1/4 cup butter, divided
- 1/3 cup bread crumbs
- 1 small onion, diced
- 2 cloves garlic, minced
- 2 tbsp all-purpose flour
- 1 cup milk
- 1/2 tsp dry mustard
- 1/2 tsp each salt and pepper
- 1 cup shredded Cheddar Cheese, divided
- 1/2 cup grated Parmesan cheese
- 15 oz frozen shredded hash browns
- 1/2 cup sour cream
- 2 tbsp finely chopped chives