4 English muffins, split, quartered
1/2 c. mayonnaise
1/2 c. chopped black olives, drained
2 c. cheddar cheese, shredded
1/2 - 3/4 c. finely chopped onion

Chop black olives. Heat oven to 350 degrees. Place muffin quarters on baking sheet; heat on middle rack until lightly browned (about 5 minutes). In medium bowl, mix cheese, mayonnaise, onion and olives. Spread about 1 teaspoon of cheese mixture on each muffin piece. Bake about 10 minutes until puffed and lightly browned.