Juicy Portobello Mushroom Burger on a toasted bun with all the fixings

Sandwiches

portobello mushroom burger recipe

By Julian Bellweather

Published: 30 Mar 2025

So, let me tell you a story. Last summer I was at a music festival, all muddy and slightly sunburnt. My friend Mark, who's a total foodie, introduced me to the most incredible portobello mushroom burger. It was life-changing. Seriously. So I decided to recreate this gastronomic delight for all of you! This recipe isn't just about making a burger; it's about making a culinary statement. It's about creating a juicy, delicious, and incredibly satisfying meal that's both meaty and earth-friendly.
Close-up shot of a portobello mushroom burger with vibrant toppings
The beauty of this recipe is its adaptability. You can make it as fancy or as simple as you want. Feel free to experiment with different marinades, cheeses, and toppings. Don't be afraid to get creative! Remember that cooking is an adventure! You get to taste your success and learn from your mistakes—and even mistakes can be tasty sometimes!
A person holding a portobello mushroom burger in their hand, outdoors

Required Equipments

  • Large skillet
  • Mixing bowls (2)
  • Measuring cups and spoons
  • Spatula
  • Burger press (optional)
  • Bun warmer or toaster

Portobello-Mushroom-Burger-Recipe

This isn't your average veggie burger. This Portobello Mushroom Burger is a juicy, flavorful explosion that will even impress meat-lovers. Get ready for a taste sensation!

⏳ Yield & Time

Yield: 1 servings

Preparation Time: 15 minutes

Cook Time: 10 minutes

Total Time:

🍽 Ingredients

📖 Instructions

  1. First things first, preheat your large skillet over medium heat. This is super important for even cooking.
  2. Now, let's tackle the mushrooms. Gently clean them with a damp cloth or paper towel. Remove the stems and gills (the dark, spongy part underneath). If you're feeling fancy, you can carefully remove the gills with a spoon—they get a little soggy when cooked.
  3. Time to marinate! In one of your mixing bowls, whisk together the soy sauce, balsamic vinegar, olive oil, garlic powder, onion powder, and black pepper. Add your portobello caps, ensuring they're fully coated. Let them sit in the marinade for at least 30 minutes – but the longer the better, up to 4 hours in the fridge!
  4. Once marinated, remove the mushrooms and pat them dry with paper towels. This prevents excess moisture from steaming instead of searing on the skillet.
  5. Lightly oil the skillet. Place the mushrooms cap-side down in the hot skillet. Cook for about 5-7 minutes per side, until they are nicely browned and tender. If they're cooking unevenly, adjust your heat. You want that beautiful, deep, rich brown color!
  6. While the mushrooms are cooking, prepare your burger buns. Toasting them enhances the taste and texture – yum! Pop them in a bun warmer or under the broiler or in a toaster for a minute or two.
  7. Time to assemble the masterpiece! Spread your favorite condiments (mayo, ketchup, mustard – whatever your little heart desires) on the toasted buns. Place the cooked portobello mushroom caps on the bottom bun.
  8. Top with your favorite cheeses, lettuce, tomato, onion, avocado, or anything else that sounds good. Get creative! I like a good mix of textures and colors in my burger.
  9. Add the other bun and gently press down. Serve immediately and enjoy!

📝 Notes

  • If you want a smokier flavor, grill the mushrooms instead of pan-frying them. Make sure to preheat that grill, my friend!
  • Don’t overcrowd the skillet when cooking the mushrooms. Work in batches if necessary to ensure even browning.
  • Feel free to substitute the balsamic vinegar for red wine vinegar. It adds a totally different flavor profile!
  • For extra flavor, add a pinch of dried oregano or thyme to the marinade. A bit of fresh rosemary is also amazing!

🍎 Nutrition

Calories: 300 kcal

Protein: 10 g

Fat: 15 g

Carbohydrates: 30 g

Fiber: 5 g

Calcium: 20 mg

Frequently Asked Questions

“The best things in life are simple, like this amazing portobello mushroom burger.”

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