Tuna Sweet Potato Jackets

Ingredients: 4 small sweet potatoes (about 200g each) 185g can tuna in spring water, drained ½ red onion, finely sliced 1 small red chilli, deseeded and chopped Juice 1 lime 6 tbsp Greek yogurt Handful coriander leaves   Method: Scrub the sweet potatoes and prick all over with a fork. Place on a microwaveable plate…