Grilled Balsamic- Soy Portabella Mushrooms

READY IN: 1hr 10mins
Recipe by PalatablePastime

Quick and easy on the grill. Tastes great by itself, or made into a sandwich.

Top Review by Sharon123

Delicious! I loosely followed directions, using just one big portobello mushroom and about half the marinade. I used red onion and broiled the mushroom in the oven. I served this on whole wheat buns with mayo and sliced cheddar cheese. Yum!Made a great dinner, along with steamed asparagus and a mixed greens salad. Thanks Sue!

Ingredients Nutrition


  1. Cut stem level to mushroom and clean mushrooms.
  2. Mix together olive oil, balsamic, soy, garlic, red pepper and sesame oil in a large ziplock bag or shallow marinating dish.
  3. Place mushrooms in bag with marinade and coat thoroughly; allow to sit for 1-3 hours, turning occasionally.
  4. Slice onions about 1/4-inch thick and set aside.
  5. Prepare grill, remembering to oil grate.
  6. Place mushrooms on grill (using extra marinade for a baste), and onion slices on mesh grate on grill.
  7. Drizzle onions with a little bit of olive oil and season with salt and pepper.
  8. Cook, basting mushrooms occasionally, and turning once, about 10 minutes or until tender in center.
  9. Do not burn onions or mushrooms (if they start cooking too fast, move them further from the hottest coals or heat source).
  10. Serve mushrooms with grilled onions on a kaiser roll, if desired, along with aioli or mayo and provolone cheese.
  11. You may microwave cheese on the mushroom for 45 seconds or so if you like it melted.

Join the Conversation

  • all
  • reviews
  • tweaks
  • q & a