These slow cooker meatballs are Italian style and made with ground beef, parmesan cheese, herbs and spices. They're slow simmered to tender perfection in the crock pot and are perfect served over spaghetti or as a hearty appetizer.
Preheat the broiler. Coat a baking sheet with cooking spray.
Place the ground beef, breadcrumbs, parsley, garlic, onion, egg, parmesan cheese, salt and pepper in a bowl. Mix until well combined. If it's hard to get everything to mix together, add a little water, a teaspoon at a time until a smooth mixture forms.
Shape the meat into 1 inch meatballs and place on the prepared baking sheet.
Broil the meatballs until browned, about 8-10 minutes.
Place the meatballs in the slow cooker. Add the marinara sauce, crushed tomatoes and tomato sauce and stir gently to combine.
Cover the slow cooker and cook on LOW for 6-8 hours or HIGH for 3-4 hours.
Top the meatballs with a sprinkling of parsley and parmesan cheese, then serve.