Black bean burger - Good Food Middle East

Ingredients

• 75g wholemeal bread ,or sourdough
• 75g walnuts
• 400g sweet potato
• 400g can black beans, drained
• 1 tsp smoked paprika
• 1 tsp ground cumin
• 1/2 tsp onion granules
• 1 tbsp tomato purée
• 2 tbsp rapeseed oil, to fry
• ½ cucumber, halved, deseeded and sliced on an angle
• 2 large carrots (about 300g) peeled into ribbons
• small bunch coriander, finely chopped
• 2 tbsp lime juice
• 1 tbsp rapeseed oil
• 4 sourdough burger buns
• 2 large tomatoes, thickly sliced
• 1 avocado, peeled, stoned and sliced
• 50g rocket
• coconut yogurt or burger sauce of choice