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Shiitake & Portobello Mushroom Veggie Burger

Say hello to the BEST veggie burger recipe! Of course, that’s just my opinion, but once you try it, I think you’ll agree. For one, these patties are grill-able! And if you’d rather be spending time in the sun than in the kitchen, you can even make them a day or two in advance.

Veggie Burger Recipe Ingredients

Instead of making a bean-based burger, I make this recipe with shiitake and portobello mushrooms! They give these meatless burgers a wonderful hearty texture and umami-rich flavor. Then, I round them out with these key ingredients:

  • Tamari, balsamic vinegar, and mirin bring out the savory flavor of the mushrooms.
  • Smoked paprika and sriracha make these burgers smoky and spicy.
  • Finely chopped garlic and shallots add depth of flavor.
  • Crushed walnuts give them a meaty bite.
  • Short grain brown rice, panko bread crumbs, and ground flaxseed help these burgers hold together. DON’T use long-grain brown rice here. It’s not as sticky as short grain rice, so it doesn’t yield cohesive patties.
  • Even if you’re not a mushroom person, I think you’ll love this recipe. Smoky, savory, and meaty, it makes a darn good veggie burger.

Find the complete recipe with measurements below.

Best Veggie Burger Recipe Tips

  • Use rice that’s hot off the stove. The rice has to be sticky in order to bind these patties together. As a result, your rice must be freshly cooked, as leftover rice dries out in the fridge.
  • Brush them with vegan Worcestershire sauce after cooking. These veggie burgers aren’t intended to imitate a beef burger by any means, but they do have a wonderful meaty texture and flavor. To add even more flavor and to make them slightly juicy, brush them with vegan Worcestershire sauce (I like Annie’s brand) when they come off the grill.
  • Get ahead. You have a few options for prepping this veggie burger recipe ahead of time. The patties can be made up to a day in advance and stored on baking sheets in the fridge until ready to grill. You can also grill them in advance and store them in the fridge for 3 to 4 days – they reheat surprisingly well! If you have leftovers, freeze them in an airtight container or freezer bag for up to 3 months.

Recipe credit: Love and Lemons

Nutrition Facts

  • Servings 8
  • Amount per serving
  • Calories 344
  • Total Fat 11.4g
  • Saturated Fat 1.3g
  • Cholesterol 0mg
  • Sodium 382mg
  • Dietary Fiber 4.4g
  • Total Sugars 2.6g
  • Protein 10.2g
  • Vitamin D 204mcg
  • Calcium 49mg
  • Iron 5mg
  • Potassium 423mg

Recipe Allergies

Instructions

  • 1.Heat the olive oil in a medium skillet over medium heat. Add the shallot and sauté until soft, 1 minute. Add the mushrooms and a generous pinch of salt, and sauté until soft and browned, 6 to 9 minutes, turning down the heat slightly, as needed.
  • 2.Stir in the tamari, vinegar, and mirin. Stir, reduce the heat, then add the garlic, smoked paprika, and sriracha. Remove the pan from the heat and let cool slightly.
  • 3.In a food processor, combine the sautéed mushrooms, walnuts, flaxseed, brown rice, and ½ cup of the panko. Pulse until just combined. The mixture should hold together when pinched, but it should still have some texture.
  • 4.Transfer to a large bowl and fold in the remaining panko.
  • 5.Form into 8 patties, place them on a large plate and chill in the fridge for 1 hour.
  • 6.If you're grilling the patties, preheat a grill to medium-high heat. Brush the patties with olive oil and spray the grill with cooking spray. Place the patties on the grill and use a spatula to press down lightly. Grill for 7 minutes on the first side, flip, and grill for 6 to 7 minutes on the second side, or until well-charred and cooked through.
  • 7.Alternately, cook the patties on the stove. Heat a cast-iron skillet over medium heat. Coat the bottom of the skillet with oil and cook the patties for 5 to 6 minutes per side, or until well-charred and cooked through.
  • 8.Remove from the heat, brush with Worcestershire sauce, and serve with desired fixings.

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Ingredients

  • 2 tablespoons extra-virgin olive oil, more for drizzling
  • 2 shallots, chopped (⅔ cup)
  • 16 ounces mushrooms, mix of shiitake + portobello, stemmed and diced
  • 2 tablespoons tamari
  • 2 tablespoons balsamic vinegar
  • 1 tablespoon mirin, or ½ teaspoon maple syrup
  • 2 garlic cloves, minced
  • ½ teaspoon smoked paprika
  • 2 teaspoons sriracha, more if desired
  • ½ cup chopped walnuts
  • ¼ cup ground flaxseed
  • 2 cups cooked short-grain brown rice, freshly cooked so that it’s sticky*
  • 1 cup panko bread crumbs, divided
  • Vegan Worcestershire sauce, for brushing
  • Nonstick cooking spray, for grilling
  • Hamburger buns & desired burger fixings
  • Sea salt and freshly ground black pepper