Vegan burritos

Name: Vegan burritos
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American, Mexican, Latin American
Ingredients: 4 large or 8 small tortilla wraps; 2 large handfuls spinach leaves shredded; 1 avocado thinly sliced (optional); hot sauce to serve; 1 tbsp oil; 1 garlic clove crushed; 1 tbsp chipotle paste; 400g can chopped tomatoes; 400g black beans drained; 1 bunch coriander chopped; 250g wholegrain rice cooked and drained; 1 lime juiced; ½ red onion very finely chopped; 50g hazelnuts roughly chopped