Preheat the oven to 375 degree F. In a skillet brown sausage. Drain off fat. Stir in sauce and olives. Heat through.
Split rolls lengthwise without cutting through opposite side. Hollow out buns slightly. Halve cheese slices lengthwise. Place a piece of cheese on bottom half of each roll. Divide meat mixture evenly among the 4 rolls. Place another cheese slice atop meat. Close rolls.
Wrap each sandwich in foil and seal. Place on a baking sheet. Bake wrapped sandwiches in the 375 degree F oven for 15 minutes. Unwrap and serve. Makes 4 servings.