Preheat oven to 350 degrees. Brown ground beef. Drain grease and add onion, bell pepper and corn. Cook for about 5 min. more or until veggies are tender. Stir in taco sauce and all seasonings, stir until blended. Cook until heated through. Spread thin layer of beans on tortillas and spoon beef mixture down center and add cheese. Roll up tortillas, place seam side down on cookie sheet. Brush with melted butter. Bake for 30-35 minutes or until golden brown. Serve with lettuce, tomato and sour cream is desired.