If you’re looking for a hearty and delicious meatless burger, this Portobello Mushroom Burger is the perfect way to create a vegetarian burger recipe at home.
The portobello mushrooms replace the meat perfectly since they have a texture and flavor, when seasoned, that rivals any burger recipe out there.
Once you introduce this simple mushroom burger into your grilling plans, it will become a favorite fast!

This healthy meatless burger recipe is great to add to a Party Platter or tailgating menu as well. Use this burger recipe to make a feast for your family and friends, a fun twist on tailgating recipes, or a perfect grilling option for a weekend at home.
Grilled Portobello Mushroom Burgers
The flavor and texture of Portobello mushrooms create a look and taste of how a real hamburger or cheeseburger would be. Not only are you making a healthier hamburger option, but you’re creating a truly delicious one as well.
If you’re a fan of mushrooms on burgers as a topping, these mushroom burgers become the star of the show.
Why not use these mushroom burgers as a way to think outside the burger box? Pile your favorite toppings on high and get ready to enjoy a feast.
Portobello Mushroom Burger Ingredients
Here’s everything that you need to make these delicious mushroom burgers:
- portobello mushroom caps: cleaned and prepped.
- olive oil: to add to the caps of the mushrooms. You could also use coconut oil.
- salt: essential for flavor.
- black bean & corn salsa: perfect topping for this burger and add flavor.
- avocado: excellent superfood for a creamy texture.
- lettuce: for the added crunchy texture.
- whole-grain buns: the perfect “holder” for your cooked mushrooms.
- avocado ranch: a creamy sauce that ties all the ingredients together perfectly.
Speaking of amazing burgers, you should also make this Healthy Turkey Burgers Recipe as well.
How to Grill Portobello Mushrooms for Burgers
This is one of my favorite burger recipes for the summer because it’s an excellent balance of light and delicious paired with hearty flavor.
- Make the homemade ranch
Add the ranch ingredients into the blender and mix well. Put in a container and let chill in the fridge. - Heat up the grill
Preheat the grill to 350 degrees. - Prep the mushrooms
Brush the tops of the mushrooms with olive oil and add salt to all sides. - Grill
Put the mushrooms on the grill and cook for about 4 minutes on each side. Remove and add toppings. Enjoy.
Grill this tender mushroom burger recipe with me using this quick recipe video.
What to put on a Mushroom Burger
This is where everyone can make their burgers taste unique. Add toppings like lettuce, cheese, pickles, tomatoes, onions, and more. You can literally add anything to your burger that you want!
Have a lot of topping options to change it up. This is a simple way to make this mushroom burger recipe unique and new every single time.

What to Serve with Portobello Mushroom Burgers
Every good burger recipe needs some delicious sides. Here are a few you might want to try with these portobello mushroom burgers:
- Parmesan Green Bean Fries
- Roasted Fingerling Potatoes
- Carrot fries
- Southwest Quinoa Salad
- Grilled Veggie Kabobs

Grilled Portobello Mushroom Burger
Ingredients
- 4 portobello mushroom caps, cleaned
- 1 tablespoon olive oil
- salt
- ½ cup black bean & corn salsa
- 1 avocado, sliced
- Lettuce
- 4 whole-grain buns
- Avocado Lime Ranch Dressing
Instructions
- Preheat charcoal or gas grill to medium-high heat (about 350-375F).
- On a flat surface, brush Portobello mushroom caps with olive oil and sprinkle with salt on both sides.
- Grill, for 3-4 minutes per side. Remove from grill and assemble the burger, spreading Avocado ranch on both the bottom and top buns, layering lettuce, grilled Portobello, avocado slices, black bean salsa, and additional avocado ranch dressing if desired.
Heidi
A huge meatless monday win!
Steve
Whoa. I made these last night for my buds and they were terrific. thanks!
Teri
These look delicious! I have everything to make it except the mushrooms so I added them to my list! Thanks for a great recipe!
Debbie
I saw this recipe in the huffington post and then noticed it came from here. I just wanted to tell you that we were planning on grilling portobellos (we live in florida so we grill year round) last night and when i saw this sauce I had to make it. I had everything on hand and WOW, it was terrific!!! thank you!!
Susan K
I made the avocado ranch last night an drizzled it on our salad. It was AMAZING!! I used unsweetened silk almond milk like suggested above and turned out awesome! Packed some in my work lunch.
Sarah
We made these tonight and the southwest avocado ranch is AMAZING!!! I also use Silk cashew milk and it’s great with everything. thank youuuu!!!
Esmeralda
Dairy-free arroz con leche. Follow your usual recipe and substitute the dairy products for non-dairy. Still very yummy!
Elana Brauswell
I made these yesterday. They were incredible!! Thank you for the great sauce recipe, I used silk’s almond milk and it was great!!
Britt
Hi Laura, how long will the dressing keep in the fridge? Can I make ahead?
Thanks!
Laura Fuentes
The dressing will keep 3-4 days in the fridge. Enjoy!
Bertie
Hi Laura! I love your recipes. I am super excited to try this one, but has anyone tried (or have you tried) the ranch recipe with coconut milk?
Laura Fuentes
Hi Bertie! Yes, I have. I’ve tried it with canned coconut milk and the flavor is a bit overpowering plus it’s too thick for this recipe. I’ve used Silk’s unsweetened coconut milk and So Delicious coconut milk with a lot of success. Flavor is very mild and not overpowering at all. Enjoy!