Ingredients

4 large portobello mushrooms, stems and gills removed

1/3 c. extra-virgin olive oil

1 tsp. garlic powder

1/2 tsp. ground mustard

1 tbsp. Worcestershire sauce (or low-sodium soy sauce)

4 brioche buns

Honey mustard, for serving

Tomato slices, for serving

Lettuce, for serving

Preparation

Step 1Preheat oven to 375°. In a medium bowl, whisk together olive oil, garlic powder, mustard powder and Worcestershire. Dip mushroom caps in the mixture and place mushrooms stem side down on a baking sheet. Sprinkle with salt and pepper, to taste. Bake for 20 minutes, until softened. Step 2Top with desired toppings and serve.

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