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Tempura Portobello Burgers with Gouda

plus Spicy Mayo, Tomato & Roasted Potato Wedges
Recipe Development Team
Recipe Development TeamUpdated on February 24, 2026
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Calories
990 kcal
Protein
18g protein
Total
30 minutes
Difficulty
Hard
Allergens:
  • Eggs
  • Milk
  • Wheat
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
Serving amount

1 tablespoon

Fry Seasoning

12 ounce

Potatoes

4 tablespoon

Mayonnaise

(Contains: Eggs)

82 g

Tempura Batter Mix

(Contains: Eggs, Milk, Wheat)

2 slice

Gouda Cheese

(Contains: Milk)

2 unit

Brioche Buns

(Contains: Wheat)

1 unit

Tomato

2 unit

Portobello Mushrooms

2 teaspoon

Hot Sauce

Not included in your delivery

6 teaspoon (tsp)

Salt

2 tablespoon (tbsp)

Cooking Oil

2 teaspoon (tsp)

Cooking Oil

teaspoon (tsp)

Black Pepper

/ per serving
Calories990 kcal
Fat52 g
Saturated Fat12 g
Carbohydrate107 g
Sugar17 g
Dietary Fiber6 g
Protein18 g
Cholesterol80 mg
Sodium2400 mg
Potassium1170 mg
Calcium150 mg
Iron3.5 mg
Due to the different suppliers we purchase our products from, nutritional facts per meal can vary from the website to what is received in the delivered box, depending on your region.

Cooking Steps

1
  • Adjust rack to top position and preheat oven to 425 degrees. Wash and dry produce.

  • Cut potatoes into ½-inch-thick wedges.

  • Toss potatoes on a baking sheet with a large drizzle of oil, half the Fry Seasoning, salt, and pepper. Roast on top rack until browned and tender, 20-25 minutes.

2
  • Trim and slice tomato into ¼-inch-thick rounds. Season with salt and pepper.

  • In a small bowl, combine mayonnaise and as much hot sauce as you like.

  • Place 2 TBSP tempura batter mix and 1 tsp salt in a shallow dish (4 TBSP tempura batter mix and 2 tsp salt for 4 servings). Add portobellos and flip to coat thoroughly.

3
  • Heat a ¼-inch layer of oil in a large, heavy-bottomed pan over medium-high heat.
  • In a large bowl, whisk together remaining tempura batter mix, remaining Fry Seasoning, ⅓ cup cold water (1 cup for 4 servings), and salt (we used ½ tsp; 1 tsp for 4)TIP: If mixture is too thick, add more water 1 TBSP at a time until it reaches a pancake batter-like consistency.
  • Add portobellos to batter and flip to coat thoroughly.

4
  • Once oil is hot enough that a drop of batter sizzles when added to the pan, working in batches if necessary, add portobellos. Cook until golden brown and cooked through, 2-3 minutes on the first side; 1-2 minutes on the second side. TIP: Spoon hot oil over mushrooms for an evenly crispy exterior.
  • Using a slotted spoon, transfer to a paper-towel-lined plate. Immediately season with salt and pepper; top with gouda.

5
  • Halve buns and toast until golden brown. Spread buns with as much spicy mayo as you like.

  • Fill with portobellos and sliced tomato.

6
  • Divide burgers and potato wedges between plates and serve. Serve any remaining spicy mayo on the side for dipping.