Slow Cooker Macaroni and Cheese

Name: Slow Cooker Macaroni and Cheese
Prep time: 10 min
Cook time: 3 h
Total time: 3 h
Yield: 8
Ingredients: Ingredients; 2 cups uncooked elbow macaroni; 4 cups shredded sharp cheddar cheese; 1 cup shredded mozzarella cheese; 1/2 cup grated Parmesan cheese; 2 1/2 cups milk; 1 can (12 oz) evaporated milk; 1/2 cup sour cream; 1/4 cup unsalted butter, melted; 1 teaspoon Dijon mustard (optional); 1/2 teaspoon salt; 1/2 teaspoon black pepper; 1/4 teaspoon paprika (optional, for extra flavor)