Recipes for Italian Hoagie Dip
![A meatball sub sandwich with melted cheese.](https://mandiofthemountains.com/wp-content/uploads/2024/06/slow-cooker-meatball-subs-m-2.jpg)
Meatball Sub Sandwiches (slow Cooker with Frozen Meatballs)
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These slow-cooker meatball sub sandwiches only need 4 ingredients! Dump frozen meatballs in the crockpot for a delicious, easy, and hearty dinner.
submitted by mandiofthemountains