Vegan Portobello Mushroom Burger
This vegan portobello mushroom burger is piquant and scrumptious at the same time. Grilled portobello mushroom caps are seasoned with a fajita spice mix, then layered among guacamole, salsa, vegan nacho cheese sauce, and spicy fajita veggies.
Servings 2 burgers
Calories 362kcal
Equipment
- Silicone brush
- Glass mixing bowl
- Grill pan
- Oven-safe glass baking dish (8-inch / 20 cm)
- Grill tool set
Ingredients
Portobello mushroom marinade
- 5 Tbsp Olive oil
- 1 clove Garlic
- 1 Tbsp Lime juice or lemon juice
- ¼ tsp Sweet smoked paprika powder
- ½ tsp Fajitas spice mix or see below for homemade spice mix
- ¼ tsp Salt
- ¼ tsp Ground black pepper
Homemade fajita spice mix
- ½ tsp Hot chili powder or flakes
- 1 Tbsp Sweet smoked paprika powder
- 1 + ½ tsp Ground cumin seeds
- 1 + ½ tsp Garlic powder
- 1 + ½ tsp Oregano
To assemble the burger
- 2 Large portobello mushrooms
- 2-4 leaves Lettuce
- ½ serving Fajita veggies (1/2 bell pepper and 1/4 onion)
- 6 Tbsp Salsa
- 6 Tbsp Nacho cheese sauce
- 6 Tbsp Guacamole
Instructions
Make the fajita marinade
- Take a small-sized bowl. Add olive oil, salt, black pepper, fresh garlic cloves, freshly squeezed lime juice, and fajitas spice mix. Stir until combined.
Soak mushrooms in marinade (min. 2 hours, but overnight is preferred)
- Peel the portobello mushrooms. Take out the stems.
- Place the mushroom caps in a shallow bowl and pour the marinade on top of them.
- Toss and turn a couple of times, to make sure they are covered everywhere.
- Repeat this step after an hour (in case of short marinate) or in the morning (in case of overnight marinate) to make sure mushrooms are not getting dry.
Pan-frying
- Heat the grill pan to medium. Once sizzling hot, place the marinated mushroom caps on it.
- Cook both sides for approx. 5 minutes. You can push the mushrooms down for a few seconds each side with a grill spatula to allow the greater surface of the mushrooms to be grilled.
- Brush each side with the leftover marinade once.
- Cover the grill pan to allow hot air to circulate through the pan (just as it would in a real gas grill).
Assemble
- Take the bottom part of a hamburger bun (if you toasted it a bit - even better)
- Spoon some salsa sauce on the first part of the burger.
- Add a couple of green leaf lettuce leaves.
- Spoon some vegan nacho cheese sauce.
- Add fajitas bell pepper and onion slices. (We have a detailed guide on how to make fajita veggies the EASIEST WAY).
- Add the grilled portobello mushroom caps.
- Finish it off with some guacamole.
Video
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