Spicy black bean fajitas with avocado salsa

1 tbsp olive oil

1 onion

2 cloves garlic

1 red chilli, deseeded

2 tsp ground cumin

1 tsp paprika

1 tsp ground coriander

1 red pepper

2 tins black beans, drained

1 tin chopped tomatoes

1 tbsp tomato puree

Pinch sugar

Salt and pepper

1 bunch coriander, washed and roughly chopped

For the salsa

1 large ripe avocado

150g ripe cherry tomatoes, chopped in quarters

Juice 1 lime

1 red chilli, deseeded and chopped

1 clove garlic, crushed

1 small bunch coriander, washed and chopped

To serve

8 flour or corn tortillas

Grated cheese such as mature cheddar or manchego

Sour cream