Heat oil and butter in a large casserole dish on the hob, add the onions and cook until soft and golden. Add the curry paste and peppers, then cook for 5 minutes more. Add the chicken and stir well to coat in the paste. Cook for 2 minutes.
Tip in the can of tomatoes and Heinz Cream of Tomato Soup. Gently simmer for 15 minutes, stirring occasionally, until the chicken is cooked. Cut into a thick chunk of chicken to check that it is cooked through, with no pink showing.
Stir through the mango chutney and yogurt, allow to warm through. Scatter with the coriander and serve with basmati rice and naan bread.
For top tips on protecting you and your family when preparing raw meat and poultry, visit Food Safety in the Home and view the full Food safety at home video.
Haven't got time to cook this from scratch?
Try our ready-made version - Tesco Chicken Tikka Masala and Rice.