2 large portabella mushroom caps, stems twisted off and "gills' scraped out with a spoon
1 tbsp extra virgin olive oil, divided
1/4 tsp salt, divided
2-4 tbsp soft goat cheese
2 whole grain hamburger buns for serving
dijon mustard for serving
lettuce for serving
Preheat oven to 400 degrees and line a baking sheet with a piece of aluminum foil.
Rub each mushroom with olive oil on both sides and sprinkle generously with salt. Place gill side up on the baking sheet and roast for 15 minutes, turning mushroom caps over midway through cooking.
To prepare sammies, toast hamburger buns (or stick in the oven for the last few minutes of roasting). Spread dijon mustard on each bun and top with lettuce. When mushrooms are done roasting, spread each liberally with goat cheese and place in sandwich.