Toasted Onion Canapes
["20 (2-inch) bread rounds", "3/4 c. minced onion", "1/2 c. mayonnaise", "1/4 c. grated Parmesan cheese"]
["Toast one side of bread rounds under broiler on baking sheet. Spread onion, mayonnaise and cheese mixture on untoasted side. Broil 3 inches from heat for 2 to 3 minutes, or until golden brown.", "Makes 20."]
["bread", "onion", "mayonnaise", "Parmesan cheese"]