Mix the paste, yoghurt, lemon and chicken together in a bowl and refrigerate for a couple of hours or overnight if you have the time.
Turn the Actifry on, add a spoon of oil and the seeds and leave it for a couple of minutes to heat up.
Add the onion and cauliflower and give them 5 minutes to cook. After 5 minutes add the chicken.
After another 10 minutes cooking add the tomatoes and half a tin of water and a pinch of salt.
Leave to cook for another 20 minutes, or until the chicken is cooked through. Do check for seasoning and whether it needs a little more salt or lemon juice. Serve with rice, naan or flour tortillas.