Looking for an appetizer recipe that’s both easy to make and delicious? These cocktail meatballs slow cooker recipe are perfect!

To make them, simply mix together ground beef, bread crumbs, onion, salt, and pepper. Then, form the mixture into small meatballs and place them in a slow cooker.

In a separate bowl, mix together ketchup, brown sugar, Worcestershire sauce, and dijon mustard. Pour the mixture over the meatballs and cook on low for 4-6 hours.

These cocktail meatballs make a …