How To Make a Portabella Mushroom Burger

For a Twist on the Traditional Hamburger, Try this Veggie-Type Burger

Portabello mushrooms, when fully matured, are about the size of the a traditional ground beef burger. And this makes them perfect for grilling and creating a vegetarian-type burger.

For a bit of information, the nutritional value of a Portabello (sometimes spelled Portobella) is high in vitamin B, and they are naturally low in cholesterol and fat free, along with being nearly calorie-free. Smaller Portabello mushrooms are called Crimini, indicating a younger, unopened form of this mushroom. Crimini mushrooms are very tasteful in salads, sauted to be used as a pizza topping, and to be used in sauces (see my article on How To Saute Mushrooms and How To Make Condensed Mushroom Soup).

But now with your mouth watering for a burger, let's continue with this recipe. And, any burger is not complete without various condiments.

Step 1

For this Portabello Burger, you will need:

  • An open, hot grill
  • Pastry brush

Step 2

Ingredients for One Burger:

  • 1 Portabello mushroom, stem removed and veins scraped out
  • Olive oil
  • ½ avocado, thinly sliced
  • 1 slice of fresh tomato
  • 1 slice of Provolone cheese
  • Mayonnaise to taste
  • Salt and pepper to taste
  • 1 bun, preferably a Kaiser Roll

Step 3

Prepare Burger:

  • After cleaning mushroom, brush with olive oil using the pastry brush.
  • Place on hot grill, bottom side down first.
  • In the meantime, slice avocado and tomato, and butter Kaiser Roll (and, if desired, can be placed on upper rack of grill to toast the roll).
  • After 2-3 minutes, turn over mushroom.
  • Place slice of cheese on mushroom (it will melt into the “cup” of the mushroom) and continue grilling.
  • When both the mushroom is softened and the is roll toasted, remove from grill.

Step 4

Assemble Burger:

  • Place mushroom on bottom half of roll.
  • Top with tomato slice and avocado slices.
  • Salt and pepper to taste.
  • Spread mayonnaise on top part of roll.
  • Place top part of roll on burger and eat!

Let me know if I have converted you to a vegetarian burger.


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