Quick beany enchiladas

Ingredients

• 1 tbsp sunflower oil, plus extra for greasing
• 100g/3½oz frozen chopped onion (or 1 medium onion, peeled and roughly chopped)
• 100g/3½oz mixed frozen peppers (or 1 yellow pepper, de-seeded and sliced)
• 1 x 400g tin chopped tomatoes
• 1 x 400g tin red kidney beans in chilli sauce
• 1 tbsp freshly squeezed lime or lemon juice
• 3 heaped tbsp chopped fresh coriander, plus extra to garnish
• 4 x 40g/1½oz ready-made flour tortillas
• 75g/2½oz mature cheddar, coarsely grated
• salt
• freshly ground black pepper