Stack tortillas together and wrap in wax paper. Microwave on high for 50 seconds. In a small bowl, combine refried beans, 1/3 cup enchilada sauce, and half of the cheese. Mix well. Spoon four tablespoons mixture onto each tortilla. Fold bottom end up, roll side in and fold top down. Pour remaining enchilada sauce over top and sprinkle with remaining cheese. Microwave on high for four minutes, rotating chimichangas after two minutes.