1 (2 1/4 oz.) can deviled ham
1 c. shredded sharp Cheddar cheese
1/2 c. mayonnaise
1 tsp. grated onion

Combine all ingredients in a small saucepan. Heat over low heat, stirring until cheese is melted and mixture is well blended. Serve warm or cold with chips, crackers, toast rounds, or snack breads. Makes 1 cup.