Heat a pan and turn the oven to 230 C/446 F.

Start with chopping the sweet potato into thin stripes. Put it in a pan and add oil, salt, paprika powder, cumin and cayenne and put it in the oven for 30 minutes.

Continue on to the tortillias. Mix the corn flour, whole wheat flour, baking powder and salt together and add water and oil. Mix it until you have a nice dough.

Now split the dough into 12 small bits or 6 big bits and start to roll until you have round tortillias. Fry in a pan without oil for a few minutes on each side (look for bubbles, not just one but two then they are usually ready to be turned).

Take out the sweet potato stripes and start chopping the leek and the mushrooms then your ready to serve your vegetarian taco! A tip would be to add some kind of yummy dressing, recipe will be posted soon.