Place frozen meatballs in the crock pot
In a medium bowl combine the marinara suace, red pepper and vinegar
Pour over meatballs
Cover and cook on low setting for 4 to 5 hours or on high for 2 to 21/2 hours.
Gently stir mixture in crock pot
When ready to serve place cheese on top bun and two meatballs on the button but
Sandwich together and enjoy.