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Vegan Smash Burger with Portobello
American·vegan·easy

Vegan Smash Burger with Portobello

This smash burger reimagines the classic with portobello mushrooms as the star, delivering a meaty texture and deep umami flavor that holds up to bold seasoning. The mushrooms are seared until caramelized, then pressed for that satisfying crisp edge, while toasted vegan buns add a sturdy crunch to balance the juicy, savory patties. Topped with fresh lettuce, ripe tomato, creamy vegan mayo, and a tangy pickle crunch, every bite is a layered symphony of textures and tastes. It’s a gourmet vegan burger that even skeptics can’t resist.

45 min(prep 15 + cook 30)
4 servings
400 kcal
4.5

Ingredients

  • Portobello mushrooms4 large
  • Olive oil2 tbsp
  • Garlic powder1 tsp
  • Onion powder1 tsp
  • Saltto taste
  • Black pepperto taste
  • Vegan burger buns4
  • Lettuce4 leaves
  • Tomato1, sliced
  • Vegan mayonnaise4 tbsp
  • Avocado1, sliced
  • Picklesto taste

Nutrition

400 kcalper serving
Protein20g22%
Carbs45g48%
Fat15g16%
Fiber5g5%
Sugar8g9%

Directions

  1. 1

    Preheat a grill or skillet over medium-high heat. Brush the portobello mushrooms with olive oil and season with garlic powder, onion powder, salt, and black pepper.

  2. 2

    Place the portobello mushrooms on the grill or skillet and cook for about 5-7 minutes on each side, pressing down gently with a spatula to create a 'smash' effect until they are tender and juicy.

  3. 3

    Toast the vegan burger buns on the grill for 1-2 minutes until golden brown. Assemble the burgers by spreading vegan mayonnaise on the buns, adding the grilled portobello mushrooms, lettuce, tomato slices, avocado, and pickles. Serve immediately.

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