Dinner
Portobello Burgers at Home
Rich and savory, these Portobello Burgers are going to be your new regular vegan summer meal. This unfussy vegetarian grilling option
- 4 servings
- Prep 25 minutes
- Cook 10 minutes
- Total 35 minutes

Rich and savory, these Portobello Burgers are going to be your new go-to vegan summer meal. This unfussy vegetarian grilling option is juicy, meaty and packed with SO much flavor that even the heartiest of meat eaters will love it.
Looking for more vegan summer recipes? Everyone loves this straightforward Grilled Tofu recipe as well as my Straightforward Vegan Pasta Salad and my UNFUSSY BBQ Jackfruit!
Worth a second batch a good veggie burger around here and it you’ve never tried a grilled Portobello Mushroom Burger before you are in for a real treat! Because Portobello mushrooms are like sponges, they take on the flavor of the marinade in a big way. So, they are ESPECIALLY good! They have a meaty texture to them and a woodsy flavor from the mushroom, plus all the great tang and depth of the marinade.

Ingredients needed
This mushroom burger recipe is simple and straightforward, yet filled with savory flavor. We’re using basic pantry staples for the marinade that will take these burgers to the next level. Here’s what you’ll need:
- Portobello mushrooms. This method uses 4 large portobello mushrooms to make 4 burgers. When selecting mushrooms at the store, look for caps that are firm and uniform in color, not spotty.
- For the marinade. The marinade is a flavorful blend of balsamic vinegar, olive oil, soy sauce, Italian seasoning, maple syrup, garlic powder and black pepper.
- Buns. Use any hamburger buns you’d like (even gluten free). Fluffy brioche buns are my go-to!
- Burger toppings. Anything goes! Add some fresh produce like tomato, lettuce, red onion or even avocado, or keep them simple with ketchup or mustard.
See how for this dish
The FULL written recipe is down in the recipe card!

Marinate mushrooms. Whisk together the marinade and add in the mushrooms and let them soak for 15 minutes on each side.

Grill mushrooms. Pre-heat your grill (or grill pan) to 400 degrees F. Place the mushrooms on the grill and grill for 4 minutes. Brush a bit of the marinade on the mushrooms, flip, and grill for an additional 3-4 minutes.

More recipes for the grill
The recipe
Portobello Burgers at Home
Rich and savory, these Portobello Burgers are going to be your new regular vegan summer meal. This straightforward vegetarian grilling option is juicy, meaty and packed with SO much flavor that even the heartiest of meat eaters will love it.
- 4 servings
- Prep 25 minutes
- Cook 10 minutes
- Total 35 minutes
Ingredients
- 4 large cleaned* portobello mushrooms stems removed
- ¼ cup balsamic vinegar
- 1 tablespoon olive oil
- 2 tablespoons soy sauce
- 1 teaspoon liquid smoke (optional but it adds a genuinely nice smokey flavor)
- 2 teaspoons Italian seasoning
- 1 teaspoon maple syrup
- 1 teaspoon garlic powder
- ½ teaspoon black pepper
- 4 buns
- Toppings of choice: lettuce (onion, cheese, sauce, etc.)
Method
- 1
If you haven’t already done so, start by preparing your mushrooms. Using a damp paper towel, gently wipe clean the mushrooms. I do not suggest running the mushrooms under water to clean them because they will absorb excess moisture. Remove the stems but firmly holding the mushroom in your palm and bending the stem to the side until it snaps off. You can also simply cut it out.
- 2
In a large shallow container big enough to place all of the mushrooms flat, whisk together the balsamic vinegar, olive oil, soy sauce, liquid smoke, italian seasoning, maple syrup, garlic powder, and black pepper. Add in the mushrooms and let them marinate for 15 minutes on each side. Every few minutes, I like to spoon the mixture over top of the mushrooms for maximum flavor.
- 3
Once ready to grill, pre-heat your grill (or grill pan) to 400 degrees F. Lightly brush the grates with oil to prevent the mushrooms from sticking. Carefully place the mushrooms on the grill and grill for 4 minutes. Brush a bit of the marinade on the mushrooms, flip, and grill for an additional 3-4 minutes. As desired, you can brush a bit more of the marinade on at the end. The mushrooms are done when they’re a deep brown color and only starting to caramelize a bit around the edges.
- 4
If using cheese, place 1 slice on each mushroom about 1 minute before they’re done grilling.
- 5
Remove from the grill, place on your bun and top with your go-to burger toppings!
Per serving
- Calories252 kcal
- Carbohydrates41 g
- Protein8 g
- Fat6 g
- Saturated Fat1 g
- Polyunsaturated Fat0.5 g
- Monounsaturated Fat3 g
- Trans Fat0.003 g
- Sodium1101 mg
- Potassium368 mg
- Fiber3 g
- Sugar10 g
- Vitamin A17 IU
- Vitamin C0.03 mg
- Calcium34 mg
- Iron12 mg







