1 1/2 lbs sausage
2 cups frozen stir-fry bell peppers and onions, thawed
1/2 cup chopped pepperoni
1 can (15 ounces) pizza sauce
1/2 teaspoon Italian seasoning
3 roma tomatoes, coarsely chopped
18 sandwich buns
1 1/4 cups shredded mozzarella cheese
Cook sausage in 10-inch skillet over medium-high heat 9 to 11 minutes, stirring occasionally, until no longer pink; drain.
Spray 3- to 4-quart slow cooker with cooking spray.
Mix sausage, stir-fry vegetables, pepperoni, pizza sauce and Italian seasoning in cooker.
Cover and cook on Low heat setting 4 to 6 hours.
Stir in tomatoes.
To serve, fill buns with sausage mixture and sprinkle with cheese.
NOTE: If the sausage has a casing, remove and discard it before you brown the sausage. Stiir the sausage frequently during cooking to break it up into small pieces