In a skillet brown beef and onion; drain.Add the next eight ingredients; bring to a boil. Reduce heat; cover and simmer for 15 minutes. Cool.
Roll each loaf of dough into a 16x8 inch rectangle about 1/4 inch thick. Cut each into eight 4 inch squares; top each with 1/4 cup of filling and 1 tablespoon of cheese. Bring the four corners together up over filling; pinch seams to seal. Place on greased baking sheets. Cover and let rise for 15 minutes. Bake at 350 for 20-25 minutes or until browned. Serve immediately, or freeze and reheat in microwave at 50% power for 1 1/2 minutes each.