Step 1

Make the marinade by combining the first 9 ingredients together. Mix really well.

Step 2

Put all of the pepper and onion slices on a large, deep, baking tray (like this). Add the mushrooms, tearing bigger ones into smaller pieces with your hands.

Step 3

Coat everything in the marinade and set aside for as long as you can, but you can bake straight away too, if you wish.

Step 4

Preheat the oven to 200° C / 390° F.

Step 5

Bake the mushrooms and peppers for about 15 minutes, giving everything a good stir and then increase the temperature 225° C / 435° F to bake for another 20-25 minutes, until all juices bake out and the ingredients get a nice char.

Step 6

Assemble your fajitas by putting a generous amount of filling at the bottom of each tortilla. Finish off with chopped avocado, vegan sour cream, fresh coriander and a squeeze of lime and a dash of Tabasco (if liked).