Combine crushed tomatoes, 2 minced cloves of garlic, 1 Tbsp of basil and 1/4 tsp of black pepper in the crock pot. Stir.
In a bowl, combine everything else.
Using your hands, mix the meat with the ingredients.
Form into golf-ball sized balls.
Add the meatballs to the slow cooker and gently submerge in the sauce.
Cook on high for 4 hours, medium for 6 hours or low for 8 hours.
Add spaghetti noodles when there is 2 hours of cooking time left.
Serve with extra parmesan cheese on top, and enjoy!