Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

Portobello Mushroom Burger with Purple Cabbage Slaw

With earthy portobello, sweet roasted onions and a crunchy cabbage slaw, this vegetarian alternative to a classic burger is sure to satisfy even the most avid carnivores.

Egg FreeVegetarianPescatarianNut Free

2

Servings

15 Mins

Prep Time

15 Mins

Cook Time

Prep

Hide Videos

Preheat the Oven and Make the Slaw Dressing

Set the oven to bake, and preheat to 435°F/ 220°C (high, not convection) and adjust the rack to the middle. While the oven preheats, combine all the ingredients for the slaw sauce in a large bowl and whisk until well incorporated.

  • Honey½ tsp.
  • Apple Cider Vinegar2 tsps.
  • Mayonnaise3 Tbsps.
  • Whole Grain Mustard1 tsp.
  • Kosher Salt⅛ tsp.
  • Black Pepper(freshly cracked)6 turns
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

Thinly Slice the Cabbage

Toss the cabbage in the slaw dressing.

  • Purple Cabbage(thinly sliced)1 cup
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

Thinly Slice the Scallion Greens on a Bias

Add to the cabbage slaw.

  • Scallion Greens(thinly sliced)1
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

Prepare the Marinade for the Mushrooms

Measure and combine all the ingredients and mix until fully incorporated.

  • Garlic Clove(finely chopped)1
  • Shallot(finely chopped)1 tsp.
  • Worcestershire Sauce½ tsp.
  • Liquid Smoke⅛ tsp.
  • Sherry Vinegar½ tsp.
  • Extra Virgin Olive Oil1 Tbsp.
  • Kosher Salt½ tsp.
  • Black Pepper(freshly cracked)5 turns
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

Season and Add the Marinade

Moderately season the mushrooms and spoon some marinade into each cap. Place the mushrooms scored side up on a foil lined baking sheet.

  • Kosher Saltas needed
  • Marinadeas needed
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

Slice and Season the Onion

Slice the onion into 1/4 inch disks, then lightly season and toss to coat. Place them on the baking sheet.

  • Red Onion(sliced into discs)¼
  • Kosher Saltas needed
  • Extra Virgin Olive Oilas needed
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

Finish with Olive Oil

Drizzle some olive oil over the onions and mushrooms.

  • Extra Virgin Olive Oilas needed
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

Cooking Steps

Hide Videos

1. Roast the Onions and Mushrooms

Roast in the preheated oven for about 15- 20 minutes or until cooked through and slightly charred.

Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

2. Top with Cheese

Place 1 slice of cheese on each mushroom and return to the oven.

  • Swiss Cheese2 slices
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

3. Finish Roasting the Onions and Mushrooms

Finished roasting for 2-3 minutes or until cheese is melted to your liking.

Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

4. Build the Burgers

remove the ingredients from the oven and build each burger by placing a mushroom on each bottom bun, followed by the onions, slaw and the top bun. You can also add your favorite condiments.

Current Time 0:00
/
Duration Time 0:00
Progress: NaN%

5. Serve Immediately

Top each burger with a cornichon for added flare and serve hot.

  • Cornichons(optional)2
Current Time 0:00
/
Duration Time 0:00
Progress: NaN%