Skip to main content

Vegan Fajitas | 15-Minute Ultimate Portobello Fajitas

Vegan Fajitas | 15-Minute Ultimate Portobello Fajitas
Jennifer Blow
Writer and expert4 years ago
View Jennifer Blow's profile

This will be your go-to weeknight vegan fajitas recipe.

Did you know Portobello mushrooms make the perfect swap-in for vegan fajitas? Knock this vegan dinner up in 15 minutes flat for a delicious and speedy weeknight vegan meal!

Check out the macros at the bottom, and don't forget to check out our other delicious 15-Minute Vegan Dinners.

Want to boost your protein? Try stirring in some kidney beans for an extra protein punch that's also packed with fibre, vitamin B1, magnesium and iron.


Serves: 2

  • 1 tbsp. Coconut Oil
  • 2 bell peppers (sliced)
  • 1 white onion (sliced)
  • 4 Portobello mushrooms (sliced)
  • Fajita seasoning spices: ½ tsp. paprika, 1 tsp. chilli powder, ½ tsp. garlic powder, ½ tsp. cumin
  • 1 tbsp. soy sauce
  • Good handful pickled and sliced jalapeño peppers
  • 6 small whole wheat tortillas
Optional toppings:
  • Guacamole (check out our favourite recipe here)
  • Tomato salsa


1. Heat a large pan on a medium to high heat. Drop in the coconut oil, then once it has melted, add the sliced onions and bell peppers. Fry for 8-10 minutes until the vegetables begin to soften, then stir through the spices and fry for a further 2 minutes, stirring occasionally.

2. Add the Portobello mushrooms and soy sauce to the mixture and fry until browned – this should take around 4-6 minutes.

3. Once browned, warm the tortillas in the oven for 5-10 minutes or in the microwave on full power for 30 seconds. Fill the tortillas with your Portobello fajita mix, and top with jalapeño peppers, guacamole and salsa. Perfection.

Enjoy this recipe?Don't forget to check out the rest of our 15-Minute Vegan Dinner recipes.


Nutritional info per serving:

Total Fat15g
Total Carbohydrates35g
Jennifer Blow
Writer and expert
View Jennifer Blow's profile

Jennifer Blow is our UKVRN Registered Associate Nutritionist – the UK’s register of competent and qualified nutrition professionals. She has a Bachelor’s of Science in Nutritional Science and a Master’s of Science by Research in Nutrition, and now specialises in the use of sports supplements for health and fitness, underpinned by evidence-based research.

Jennifer has been quoted or mentioned as a nutritionist in major online publications including Vogue, Elle, and Grazia, for her expertise in nutritional science for exercise and healthy living.

Her experience spans from working with the NHS on dietary intervention trials, to specific scientific research into omega-3 fatty acid supplementation and also the effect of fast foods on health, which she has presented at the annual Nutrition Society Conference. Jennifer is involved in many continuing professional development events to ensure her practise remains at the highest level. Find out more about Jennifer’s experience here.

In her spare time, Jennifer loves hill walking and cycling, and in her posts you’ll see that she loves proving healthy eating doesn’t mean a lifetime of hunger.