Meatball Sliders

Prep time: 20-30 minutes Cook time: 6.5-7 hours Meatball Materials: 1 lb ground beef 1 small onion diced 2 large garlic cloves diced 2 tbsp fresh parsley chopped 1 egg ⅓ cup bread crumbs ¼ cup mozzarella cheese 2 tbsp. grated Parmesan cheese Salt and pepper to taste 1 tbsp. basil fresh or dried 1…