Preheat oven to 180º C /360 ºF / Gas Mark 4.
Heat the olive oil in a medium pan over a low/medium heat. Add onion and garlic, sauté until onion is translucent. Add coriander and cumin.
Cook for two minutes stirring constantly adding a little water if the pan seems dry.
Add the spinach, black beans, soy sauce and mashed sweet potatoes. Cook for 3-5 minutes. Remove from heat and season with sea salt.
Place ¼ cup of mixture in centre of tortilla. Roll into a burrito and place in a non-stick baking dish.
Once all the burritos are assembled, pour your favourite salsa on top and cover with aluminium foil.
Bake for 25 minutes.
Remove and sprinkle with melty vegan cheese and return to over for 2-5 minutes (until the cheese is melted).
Garnish with sliced spring onions and serve!