This is one of the recipes from my childhood.
Barbecue Sloppy Joes
1 lb ground hamburger thawed if frozen
1/8 tsp. Black pepper
1 c. onion chopped
1 8-ounce can tomato sauce
½ c. barbecue sauce
¼ c. water
4 hamburger buns
Crumble hamburger into a medium skillet. Sprinkle with pepper. Add onion. Over medium-high heat, cook and stir for five minutes or until meat is no longer pink and onion is almost tender. Reduce heat to low.
Stir in tomato sauce, barbecue sauce and water. Cover and simmer for 15 minutes or until onion is tender, stirring occasionally.