These crockpot meatball cubs are made with homemade or frozen meatballs in tomatoes sauce, mozzarella cheese, and sub rolls. Great game day food or a quick and easy weeknight dinner.
Add meatballs and tomato sauce to crockpot and cook on high for 2 hours.Or heat meatballs and sauce on the stovetop in a covered pot oven medium heat for 25 minutes.
Preheat oven to 400˚Slice sub rolls if needed and lay face-up and open on a baking sheet.
Add 4 meatballs with a generous amount of sauce to each sub roll.
Layer meatballs with 2 slices of mozzarella cheese. Repeat for each of the 5 subs.Bake subs, open-faced at 400˚ for about 5 minutes or until cheese is melted and sub rolls are lightly toasted (golden brown in color).