1 (8 ounce) package KRAFT Natural Shredded Sharp Cheddar Cheese
1 (8 ounce) package bacon, crisply cooked, crumbled
1/4 cup mayonnaise
2 tablespoons finely chopped onion
1/2 teaspoon dry mustard
Melba toast rounds

Heat broiler.

Mix all ingredients except toast rounds until well blended. Spread 1 teaspoon cheese mixture on each toast round. Place on cookie sheet.

Broil 2-3 minutes or until cheese is melted. Garnish as desired.