½ pound ground beef
½ cup chopped onion
1 (32-ounce) package frozen bread dough, thawed and divided
2 tablespoons prepared mustard, divided
12 slices American cheese, divided
2 cups shredded mozzarella cheese, divided
2 (3 ½ ounce) packages sliced pepperoni, divided
2 teaspoons dried Italian seasoning, divided
Brown ground beef and onion in a large skillet, stirring until meat crumbles. Drain well, and set aside.
Spread 1 tablespoon mustard over dough to within ½ inch of edges.
Layer 3 slices American cheese, ½ cup mozzarella cheese, half of pepperoni, and half of beef mixture lengthwise down center third of dough, leaving a ½ inch border at top and bottom of dough; sprinkle with 1 teaspoon Italian seasoning.
Top with ½ cup mozzarella cheese and 3 slices American cheese. Fold each side of dough over filling; pinch seam and ends to seal.
Transfer loaves to greased baking sheets; brush loaves with oil. Bake at 350 degrees for 25 minutes or until lightly browned. Cut each loaf into 4 slices. Makes 8 servings.
** You may substitute shredded 4 cheese blend for the American cheese slices and olive oil for the vegetable oil.