Crumble sausage into a large skillet; cook over medium heat until no longer pink. Drain; set sausage aside. In the same skillet, saute onion and red pepper in 1 teaspoon oil for 5 minutes. Add corn and seasonings. Cook and stir for 5 minutes or until vegetables are tender. Stir in tomato and sausage; heat through.
Spoon over one side of each tortilla. Sprinkle with cheese; fold over. Cook in remaining oil over medium heat for 1-2 minutes on each side or until cheese is melted. Cut each into three wedges. Serve with sour cream and salsa if desired.