1 can tuna fish (broken up)
English muffins
1/2 c. celery, chopped fine
1/2 c. mayonnaise
1 tsp. prepared mustard
1 tbsp. chopped onion
1 (8 oz.) pkg. of grated cheddar cheese

Spread halves of muffins and broil 5 to 6 minutes. Save some cheese to top before broiling.