Sweet Potato Tuna Jacket

This recipe was originally on BBC Good Food but of course I didn't have all the ingredients so more changes and ended up with another tasty dinner!

It took me quite a number of years - about 30 - to eventually buy, cook and eat Sweet Potatoes! They just didn't sound English enough for me way back then! The South African Sweet Potatoes however, seem to be different to what I am now buying back in the UK. 'English' Sweet Potatoes have a very orangey inside and seem to be much sweeter than I've had before!

The BBC recipe reads like this:
4 small sweet potatoes ( about 200g each)
185g can tuna in spring water, drained
1/2 red onion, finely sliced
1 small red chilli, deseeded and chopped
Juice of 1 lime
6T Greek yogurt
handful of coriander leaves.
1. Prick and microwave Sweet potatoes for 18-20 mins or until tender. Cut in half lengthways
2. Flake the drained tuna and arrange on the halved potatoes
3. Top with the red onion and chilli and squeeze over the lime juice.
4. Top with a dollop of yogurt and scatter the coriander over.

Needless to say, I'm not a chilli or lime fan so both those ingredients got dumped straight away!

For two of us:
1 sweet potato, scrubbed, pricked and microwaved until tender, turning halfway through the cooking. Put a small knob of butter in the potato and gently break up the potato 'flesh' in the jacket.

Mix & heat together gently in a pan : 
     1 can tuna, (I always buy in water)
     1/4 chopped or sliced onion - red does add colour but a white onion is just as good
     1/2 cup frozen peas
     sliced mushrooms
     2T (approx) of plain (Greek) yoghurt

Arrange the warmed tuna mix over the sweet potato, top with grated cheese and pop under the grill for a few moments.

Serve with your favourite salad.

Question: Yoghurt? Yogurt? !
Wikipedia:
In English, there are several variations of the spelling of the word, including yogurt, yoghurt, yoghourt, yogourt, yaghourt, yoghurd, joghourt, and jogourt. In the United Kingdom and Australia, yogurt and yoghurt are both current, yoghurt being more common while yogurt is used by the Australian and British dairy councils, and yoghourt is an uncommon alternative. In the United States, yogurt is the usual spelling and yoghurt a minor variant. In New Zealand, yoghurt is preferred by the New Zealand Oxford Dictionary.In Canada, yogurt is most common among English speakers, but many brands use yogourt, since it is an acceptable spelling in both English and French, the official languages of Canada.
Whatever the spelling, the word is usually pronounced with a short o (/ˈjɒɡət/) in the UK, with a long o (/ˈjoʊɡərt/) in North America, Australia, Ireland and South Africa, and with either a long or short o in New Zealand.