1/2 cup Mayonnaise
1/4 cup freshly grated Parmesan Cheese
2 oz. canned mushroom pieces and stems, drained
1/2 of 2.8 oz. can of French-fried onion rings
1 loaf (8 oz.) Party Rye or Pumpernickel Bread
In a bowl, stir together the mayonnaise, Parmesan cheese, mushrooms, and onion rings. Spread on lightly toasted party rye or pumpernickel bread. Place the canapes on a baking sheet and broil until the topping is bubbly.