Ingredients
- 2 large portobello burgers, stems and gills removed
- 1/4 c. olive oil
- 1 tsp. garlic powder
- 1/2 tsp. ground mustard powder
- 1 tbsp. Worcestershire sauce
- 1/2 c. shredded sharp Cheddar
- 2 brioche buns, toasted
- honey mustard, for serving
- Tomato slices, for serving
- Lettuce, for serving
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