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Grilled Portobello Mushroom Burgers
5 from 6 votes

Grilled Portobello Mushroom Burgers

These Grilled Portobello Mushroom Burgers are marinated in a pollo a la brasa-like marinade. They’re layered with lettuce, tomato, aji verde and red onion on a delicious brioche bun. They are my favorite vegetarian-friendly grilled burger! 

Prep Time
15 mins
Cook Time
10 mins
Total Time
25 mins
Servings: 4
Calories: 123 kcal
Course: Dinner
Cuisine: American

Ingredients

Mushroom Marinade:
  • 2/3 cup soy sauce
  • 1- inch ginger knob
  • 3 garlic peeled, cloves
  • 1 tablespoon red wine vinegar
  • 1 aji amarillo pepper or jalapeño
  • 1 teaspoon paprika ground
Mushroom Burgers:
  • 4 portobello mushroom
  • neutral oil for the grill
  • 4 Brioche buns burger buns
  • 4 lices swiss cheese
  • green chili pepper for buns
  • lettuce
  • 1 to mato sliced
  • 1/2 red onion peeled and thinly sliced

Instructions

How to Make the Mushroom Marinade:
    Cup of Yum
  1. In a blender, add the soy sauce, ginger, garlic, red wine vinegar, pepper of choice and paprika. Blend until very smooth, about 30 seconds.
To Marinate and Cook the Burgers:
  1. Fire up and heat your grill over medium to high heat. Brush the grates with neutral oil (such as avocado oil).
  2. Add the portobellos to a shallow baking dish and pour the marinade over the portobellos. Allow them to marinate for 5 minutes. This may not sound long enough but you don’t want them to get soggy.
  3. Add the brioche buns to the grill, cut side down, and toast them until lightly golden brown, about 2 minutes. Add the portobellos to the grill and cook for about 5 minutes. Top them with slices of Swiss cheese and close the lid to the grill, about 1 minute, just until the cheese is melted. Remove the portobello mushrooms.
To Assemble:
  1. Smother each bun with the aji verde (if using), add the lettuce, tomato, grilled portobello and red onion. Repeat with all of the burgers. Serve with potato salad or kettle chips for maximum summer experience.

Notes

  • Tips and Tricks:
  • You’re welcome to make the marinade up to 3 days ahead. You can store it in the fridge in an airtight container. Just be sure to give it a mix before using. 
  • Swiss cheese, I find works wonders with mushrooms, but feel free to use another cheese of choice. I think any melty cheese would be great. Medium sharp cheddar, mozzarella, pepper jack or fontina. 
  • I paired this recipe with my Aji Verde sauce which is always served with Pollo a la Brasa. Obviously that’s very optional. You can use other aiolis or a plain mayonnaise too! 
  • You can keep the buns warm in a 200 degree F oven after you toast them if you’re moving a bit slow or starting and stopping the recipe.

Nutrition Information

Serving 4g Calories 123kcal (6%) Carbohydrates 10g (3%) Protein 11g (22%) Fat 5g (8%) Saturated Fat 3g (15%) Cholesterol 16mg (5%) Sodium 2203mg (92%) Potassium 514mg (11%) Fiber 2g (8%) Sugar 4g (8%) Vitamin A 644IU (13%) Vitamin C 6mg (7%) Calcium 155mg (16%) Iron 1mg (6%)

Nutrition Facts

Serving: 4 Serving

Amount Per Serving

Calories 123

% Daily Value*

Serving 4g
Calories 123kcal 6%
Carbohydrates 10g 3%
Protein 11g 22%
Fat 5g 8%
Saturated Fat 3g 15%
Cholesterol 16mg 5%
Sodium 2203mg 92%
Potassium 514mg 11%
Fiber 2g 8%
Sugar 4g 8%
Vitamin A 644IU 13%
Vitamin C 6mg 7%
Calcium 155mg 16%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.

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