Ultimate Mushroom & Veggie Burger

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Ultimate Mushroom & Veggie Burger
Course Main Dish
Servings
Ingredients
Patties
  • 1/4 cup pearl barley
  • sea salt flakes
  • 500 g mushrooms stemmed
  • 2 tablespoons olive oil divided
  • Freshly ground black pepper
  • 1 14.5- ounce can black beans drained
  • 1 medium onion finely chopped
  • 2 garlic cloves finely chopped
  • 1/2 cup unsalted roasted cashews
  • 1 tablespoon oats
  • 1/2 cup mayonnaise
  • 1 large egg yolk
  • 1 tablespoon miso
  • 1 teaspoon chili powder
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon smoked paprika
  • Pinch of cayenne pepper
  • 1/2 cup shredded sharp cheddar
  • 1/2 cup feta cheese finely crumbled (
Assembly
  • 1 tablespoon olive oil
  • 6 slices cheese such as American or cheddar (optional)
  • 6 seeded hamburger buns lightly toasted
  • Special Sauce bread-and-butter pickles, torn lettuce, sliced tomatoes, and Dijon mustard (for serving)
Special Sauce
  • 1/2 cup mayonnaise
  • 2 tablespoons ketchup
  • 1 tablespoon finely grated onion
  • 1 tablespoon sweet relish or 1dill pickle relish
  • 2 teaspoons adobo sauce from canned chipotle chiles in adobo
  • 1/8 teaspoon celery salt
  • 1/8 teaspoon sea salt flakes
Course Main Dish
Servings
Ingredients
Patties
  • 1/4 cup pearl barley
  • sea salt flakes
  • 500 g mushrooms stemmed
  • 2 tablespoons olive oil divided
  • Freshly ground black pepper
  • 1 14.5- ounce can black beans drained
  • 1 medium onion finely chopped
  • 2 garlic cloves finely chopped
  • 1/2 cup unsalted roasted cashews
  • 1 tablespoon oats
  • 1/2 cup mayonnaise
  • 1 large egg yolk
  • 1 tablespoon miso
  • 1 teaspoon chili powder
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon smoked paprika
  • Pinch of cayenne pepper
  • 1/2 cup shredded sharp cheddar
  • 1/2 cup feta cheese finely crumbled (
Assembly
  • 1 tablespoon olive oil
  • 6 slices cheese such as American or cheddar (optional)
  • 6 seeded hamburger buns lightly toasted
  • Special Sauce bread-and-butter pickles, torn lettuce, sliced tomatoes, and Dijon mustard (for serving)
Special Sauce
  • 1/2 cup mayonnaise
  • 2 tablespoons ketchup
  • 1 tablespoon finely grated onion
  • 1 tablespoon sweet relish or 1dill pickle relish
  • 2 teaspoons adobo sauce from canned chipotle chiles in adobo
  • 1/8 teaspoon celery salt
  • 1/8 teaspoon sea salt flakes
Instructions
Patties
  1. Preheat oven to 180c. Cook barley in a small pot of boiling salted water until very tender, 40–50 minutes. Drain; let cool.
  2. Meanwhile, chop mushrooms into 1/4 - 1/2 inch pieces. Arrange in an even layer on a large rimmed baking sheet. Drizzle with 1 Tbsp. oil, season with salt and pepper, and toss to coat. Roast until mushrooms have lost half of their volume and are tender, 12–15 minutes. This step is essential—it removes much of the excess liquid from the mushrooms, which would lead to a mushy patty. Let cool.
  3. Spread beans on another large rimmed baking sheet and roast, tossing once, until most of them have split open and look dry around the edges, 8–10 minutes. The beans are an essential addition for binding the patty, and add protein. Let cool.
  4. Meanwhile, heat remaining 1 Tbsp. oil in a medium skillet over medium. Cook onion and garlic, stirring frequently, until soft, 8–10 minutes. Let cool. Pulse cashews and oats in a food processor until finely chopped.
  5. Whisk mayonnaise, egg yolk, miso, chili powder, agave, paprika, and cayenne in a large bowl. Add cooled barley, mushrooms, beans, onion mixture, and cashew mixture. Mash with a potato masher until mixture is well blended and sticky, about 2 minutes. Transfer one-quarter of the mixture to food processor and pulse until very finely chopped. Return to bowl with remaining patty blend. Stir in cheddar and feta cheese; season with salt and pepper. Form mixture into 6 patties (lightly oiling your hands will prevent it from sticking).
Assembly
  1. Heat oil in a large non stick fry pan over medium. Working in batches, cook patties until dark brown on both sides, about 10 minutes total. Place cheese slices over burgers, if using; cover and cook just long enough for cheese to melt, about 1 minute. Serve on buns with your choice of toppings.
Recipe Notes

Do Ahead: Patties can be made 2 days ahead; wrap tightly and chill. Or, freeze in a single layer, then wrap tightly up to 3 months. Thaw before cooking.

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Written by mattsadmin