Black Bean Burgers

Ingredients

• 1 red onion
• 200g mixed mushrooms
• 100g rye bread ground
• 1 tsp coriander
• 1 x 400g tin of black beans
• salt and pepper
• 40g mature Cheddar cheese
• 4 soft rolls
• 1/2 red onion
• 100g ripe cherry tomatoes
• 1 lime
• chipotle Tabasco sauce
• 1 ripe mango
• 1 ripe avocado
• 4 tablespoons natural yoghurt
• 4 sprigs of fresh coriander
• Tabasco sauce