Prepare the Meatballs:
In a large mixing bowl, combine ground beef, ground pork, breadcrumbs, Parmesan cheese, milk, egg, minced garlic, Italian seasoning, salt, and pepper. Mix until well combined.
Form the mixture into 1-inch meatballs.
Prepare the Tomato Sauce:
In the crockpot, combine crushed tomatoes, tomato sauce, chopped onion, minced garlic, dried basil, dried oregano, sugar, salt, and pepper. Stir to mix well.
Cook:
Place the meatballs into the crockpot, making sure they are submerged in the sauce.
Cover and cook on low for 6-7 hours or on high for 3-4 hours, until the meatballs are cooked through and the flavors have melded together.
Serve:
Serve the meatballs and sauce over cooked pasta, in sub rolls with melted cheese, or as an appetizer.
Enjoy these simple yet flavorful Italian meatballs, perfect for any meal!