Heat oven to 375°F. Grease cookie sheet with shortening or cooking spray.
In medium bowl, mix 1/2 cup pasta sauce, the sausage slices, bell pepper and onion.
Divide dough into 4 pieces. Working with 1 dough piece at a time, press or roll each to form 6- to 6 1/2-inch round. Spoon one-fourth of sausage mixture over half of each round. Sprinkle each with 1 tablespoon cheese. Carefully fold dough over cheese on each; press edges with fork to seal. Brush tops of each with oil.
Bake 18 to 22 minutes or until lightly browned. Serve with additional pasta sauce.