When unexpected guests drop by, do you have something you can quickly put together to serve? These easy Onion Parmesan Triangles can be assembled in about 10 minutes and are perfect for serving on the spur of the moment. The ingredients are so common, chances are you already have everything you need on hand.

This recipe comes from my friend Cheryl, who had me assemble them at a party she was hosting. As I read the recipe while putting these together, I had to wonder why someone like Cheryl, who is a fantastic cook and always serves showstopper dishes at her parties, would choose to serve something so weird. I was put in my place, however, when I discovered that not only were these little canapés delicious and very different from what I had imagined upon reading the recipe, they were the most popular appetizer offered at the party. No one could guess what these appetizers were made of or had a clue that they were so easy.

I tried making these canapés with reduced fat mayonnaise; the results were not good, so make sure you use high quality regular mayonnaise. Also, I rarely use the pre-grated Parmesan cheese in the green carton – we call it “cardboard Parmesan” at our house. In this case, however, the good Parmesan is too moist; the dryness of the cardboard Parmesan is what makes the recipe turn out right.

While these canapés are best served hot, I found that they are also delicious at room temperature.

Cheryl’s Onion Parmesan Triangles

20 Canapés

5 slices plain white sandwich bread
1/2 cup mayonnaise
1/2 cup Parmesan cheese, (the cardboard kind in the shiny green container)
1 small onion, quartered and very thinly sliced

1. Remove the crusts from the bread and cut each piece diagonally into four triangles; set aside


2. Mix the mayonnaise and Parmesan cheese in a small bowl.


3. Spread a thin layer of the Parmesan mixture on each triangle.


4. Place a few slices of onion on each of the triangles.


5. Top the onions with a generous amount of the mayonnaise mixture and spread to completely cover the onions.


6. Place the canapés on a parchment lined baking sheet.


7. Broil until bubbly.


8. Serve immediately.

Amount Per Serving
Calories 53 Calories from Fat 47
Percent Total Calories From: Fat 88% Protein 8% Carb. 4%

Nutrient Amount per Serving
Total Fat 5 g
Saturated Fat 1 g
Cholesterol 4 mg
Sodium 79 mg
Total Carbohydrate 1 g
Dietary Fiber 0 g
Sugars 0 g
Protein 1 g

Vitamin A 1% Vitamin C 1% Calcium 0% Iron 0%