Wash and chop your bell pepper. If you’re running short on time, you can easily omit the bell pepper, and the meatballs still taste great.
Add the soy sauce, ketchup, vinegar, brown sugar, minced garlic, and bell pepper to the bottom of the crock pot. Stir to combine.
Add the meatballs, and stir to coat them with the sauce. This is a little challenging because there’s not a lot of sauce and the meatballs are still frozen, but just do what you can. After they have been cooking a little while, it will be easier to coat them with the sauce when stirring.
Cook on high for about 3 hours. Stir occasionally.
Serve on sweet Hawaiian hot dog buns/rolls or with, rice, cous cous, or quinoa.