A veggie burger might be the first thought for a meatless entrée when you’re firing up the grill. But equally as delicious and even easier to make is a portobello mushroom burger! If you’re looking for something to rival a big juicy burger, a portobello mushroom burger totally delivers. Yes, a big mushroom on a bun. A bit unexpected, but true. Also try: Greek Grilled Portobello Burger or amazing Stuffed Portobellos!

Making this portobello mushroom burger

Mushrooms can be polarizing to some: and I was a true mushroom hater until recently! But once I gave them a chance, I realized portobello mushrooms are not the same as those slimy black bits in cream of mushroom soup. These are juicy, savory, and totally delicious. I was wary of mushrooms for years until I met the portabello. Now, I can’t think of a better treat to throw on the grill than a portobello mushroom burger! And don’t worry if you don’t have a grill – a roasted portabello tastes just as good! For this portobello mushroom burger, we went with Mediterranean flavors. We whipped up a batch of our easy basil walnut pesto, and used fresh tomatoes from the garden to build these burgers. To top it all off, melted provalone cheese makes for a super savory and filling burger. We were pleasantly surprised at how easy they were to whip up, and even more impressed at the delicious meld of flavors. I believe the word “perfection” may have been mumbled between bites. Give them a try – and let us know if you become a believer in the mushroom “burger”!

How to grill portobello mushrooms

Portobello mushrooms are very easy to grill. For our portobello mushroom burger, we marinated it prior to grilling in a mixture balsamic vinegar and olive oil. Let them stand for about 15 minutes while the grill is preheating. Before you marinade the mushrooms, make sure to remove the tough stems: this makes them easier to eat. When the grill is ready, place the mushrooms on grill and cook them for about 5 minutes per side, until juicy. That’s it! For this portobello mushroom burger, we also melted provalone cheese onto the top in the last 1 minute of grilling. And that’s it: how to make a portobello mushroom burger! Let us know if you give it a try in the comments below.

More with mushrooms

If you’re a mushroom lover, here are a few other delicious recipes using portobello mushrooms:

Grilled Portobello MushroomsCaprese Grilled Portobello MushroomsGreek Grilled Portobello BurgerGrilled Veggie Fajitas Portabello Mushroom SaladMushroom Pasta with Goat Cheese

This portobello mushroom burger recipe is…

Vegetarian. For vegan, plant-based, and dairy-free, omit the cheese and use Vegan Cashew Pesto. You could also spread the bun with hummus to add additional flavor and protein.

Looking for more grilling ideas?

Outside of this grilled portobello mushroom burger, here are a few more grilling ideas: No reviews

Best Grilled Veggie BurgerGrilled Vegetable PastaGreek Grilled Portobello BurgerGrilled Eggplant with Herbed Quinoa Grilled Cauliflower Steak with Corn SalsaGrilled Vegetarian Stuffed ZucchiniGrilled Buffalo Cauliflower SandwichTomato & Grilled Eggplant Stacked SandwichGrilled Teriyaki Mango SkewersHow to Roast Corn on the Grill Loaded Grilled NachosGrilled Eggplant Salad with YogurtGreek Grilled Veggie SkewersGrilled Carrots with Lime and Cilantro Grilled Romaine Lettuce Simple Grilled Paella 100 Grilling RecipesSummer PanzanellaMint Pesto Grilled Cheese on the Grill Pesto Portobello Mushroom Burger - 16Pesto Portobello Mushroom Burger - 2Pesto Portobello Mushroom Burger - 6