Easy Crock Pot Italian Meatball Sub Sandwiches
Tender Italian-style beef meatballs slow-cooked in savory meat sauce and topped with melted mozzarella cheese, served on crusty sub rolls. This hands-off comfort food delivers restaurant-quality subs with minimal effort - perfect for busy weeknight dinners, game day gatherings, or feeding a hungry crowd. The slow cooker method ensures the meatballs stay juicy while absorbing all the rich sauce flavors, creating the ultimate satisfying sandwich that both kids and adults will devour.
Ingredients
Instructions
- 1
Pour one-third of the meat sauce into the bottom of the crock pot
- 2
Add the entire bag of frozen meatballs to the crock pot
- 3
Pour the remaining sauce over the frozen meatballs and cover
- 4
Cook on high until the meatballs are heated through
- 5
Slice the mozzarella cheese 20 minutes before serving
- 6
Lay the cheese slices over the top of the cooked meatballs
- 7
Cover and heat until the mozzarella cheese has melted
- 8
Serve the cheese covered meatballs on sub rolls
Tips
Use a slow cooker liner for easy cleanup and to prevent sticking during the long cooking process.
Toast the sub rolls lightly before assembling to prevent them from getting soggy from the sauce.
Add fresh basil or Italian seasoning during the last 30 minutes for extra flavor depth.
Good to Know
Refrigerate assembled sandwiches up to 2 days or keep meatballs and rolls separate for up to 4 days
Prepare meatballs and sauce mixture up to 1 day ahead, reheat and add cheese before serving
Serve hot immediately after cheese melts, accompanied by chips or a simple salad
Common Mistakes
Cook on low heat to avoid overcooking and drying out the meatballs
Add cheese only in final 20 minutes to prevent it from becoming tough and stringy
Substitutions
Use same cooking time
Same size and structure
FAQ
Can I use fresh meatballs instead of frozen?
Yes, reduce cooking time to 2-2.5 hours on high since fresh meatballs cook faster than frozen ones.
What if I don't have a crock pot?
Use a covered Dutch oven in a 300F oven for the same cooking time, checking occasionally for doneness.
How long do leftovers keep in the refrigerator?
Store leftover meatballs and sauce for up to 4 days refrigerated, reheating portions as needed.