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Pair of hands holding a portobello mushroom burger over a plate.
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5 from 1 vote

Maple Dijon Portobello Mushroom Burgers

Portobello mushroom burgers are a proven hit with vegans, vegetarians and omnivores alike! These juicy sandwiches are made with hearty mushroom caps slathered in a zippy Dijon mustard sauce. Cook them up in the oven or on the grill!
Prep Time10 minutes
Cook Time20 minutes
Total Time30 minutes
Course: Sandwich
Cuisine: American
Servings: 4
Calories: 221kcal
Author: Alissa

Ingredients

  • 4 large portobello caps
  • 1 ½ tablespoons whole grain Dijon mustard, plus more for serving, if you like
  • 2 tablespoons olive oil
  • 1 tablespoon white wine vinegar
  • 1 tablespoon maple syrup
  • 1 garlic clove, minced
  • Salt and pepper to taste
  • 4 burger buns
  • Toppings of choice

Instructions

  • Clean the mushrooms and remove the stems. Scrape out the gills with a spoon.
  • Whisk the Dijon mustard, olive oil, vinegar, maple syrup and garlic together in a small bowl. Taste-test and adjust any seasonings to your liking.
  • Brush the Dijon mixture all over the outsides of the mushroom caps. Reserve any extra.
  • To bake: Preheat the oven to 400°. Arrange the mushrooms on a baking sheet, stem sides up, and bake for 10-12 minutes, until tender.
  • To grill: Lightly oil your grill and build a medium flame. Place the mushrooms directly on the grill and cook for about 4 minutes on each side, until slightly charred and tender.
  • Remove the mushrooms from the oven or grill and allow them to cool for a few minutes. Sprinkle with salt and pepper to taste.
  • Stuff the mushrooms into buns and top with any reserved sauce or additional Dijon mustard and toppings of choice. Serve.

Nutrition

Serving: 1burger (with bun) | Calories: 221kcal | Carbohydrates: 27.9g | Protein: 7.1g | Fat: 8.9g | Saturated Fat: 1.5g | Sodium: 342mg | Potassium: 356mg | Fiber: 1.9g | Sugar: 5.7g | Calcium: 50mg | Iron: 1.8mg