1. Butter one side of one tortilla; place in a small skillet, buttered side down. Top with cheese, bacon and salsa. Butter remaining tortilla; place on top, buttered side up.
2. Cook over low heat for 1-2 minutes on each side or until cheese is melted. Cut into wedges. Serve with sour cream, guacamole and additional salsa if desired. Yield: 1 serving.