Best Portobello Mushroom Burger Recipe
This Best Portobello Mushroom Burger recipe offers a flavorful, vegetarian alternative to traditional burgers. Juicy, marinated portobello mushrooms are grilled to perfection, topped with melted Brie cheese, and layered on a bun with a zesty pesto-mayo spread. Easy to prepare and packed with robust flavors, it’s an ideal dish for a satisfying meatless meal.
- Prep Time: 15 minutes
- Cook Time: 12 minutes
- Total Time: 27 minutes
- Yield: 4 servings 1x
- Category: Main Course
- Method: Grilling
- Cuisine: American
- Diet: Vegetarian
Ingredients
Scale
Mushroom Marinade
- 4 portobello mushroom caps
- ¼ cup olive oil
- 2 Tbsp. lemon juice
- 1 garlic clove, minced
- ¼ tsp. salt
- ¼ tsp. pepper
Spread
- 3 Tbsp. mayonnaise
- 1 Tbsp. pesto (store-bought or homemade)
Cheese & Assembly
- 4 oz. Brie cheese
- 4 hamburger buns
Instructions
- Prepare Mushrooms: Trim the stems off the portobello mushrooms and gently wipe any dirt off using a wet paper towel to keep them clean without soaking them.
- Marinate Mushrooms: In a bowl, mix together olive oil, lemon juice, minced garlic, salt, and pepper. Place the mushrooms gill-side down on a plate and brush lightly with the olive oil mixture. Flip them over and coat the gill side with the remaining marinade. Let them sit for 10 minutes to absorb the flavors.
- Preheat Grill: Heat your grill to medium heat to prepare for cooking the mushrooms evenly and to get nice grill marks.
- Grill Mushrooms: Place the mushrooms gill side up on the grill. Cook until you see attractive grill marks underneath, about four minutes. Turn each mushroom 90 degrees to create crosshatch grill marks and cook for an additional two minutes. Flip the mushrooms and repeat the process on the other side. Then flip the mushrooms again and place 1 ounce of Brie cheese on top of each mushroom, allowing it to melt as they finish cooking. Once the cheese has melted, remove the mushrooms from the grill and place on a plate.
- Prepare Spread & Assemble Burger: In a small bowl, combine the mayonnaise and pesto until smooth. Spread about 1 tablespoon of this mixture onto each hamburger bun. Place the grilled Brie-topped mushroom on the bun and add your favorite burger toppings as desired. Serve immediately while warm.
Notes
- For a vegan version, substitute mayonnaise and Brie with plant-based alternatives.
- Make sure to not soak mushrooms in water, as they absorb moisture easily and can become soggy.
- Use a grill pan if you don’t have access to an outdoor grill.
- Feel free to customize toppings like lettuce, tomato, or avocado for extra freshness.
- If you prefer stronger flavor, marinate mushrooms longer, up to 30 minutes.
Keywords: Portobello mushroom burger, grilled mushroom burger, vegetarian burger, Brie cheese burger, pesto mayonnaise spread
Find it online: https://spatulaqueen.com/best-portobello-mushroom-burger-recipe/
