This is the quintessential of fusion meals, Chicken Tikka Masala, which has become one of the icons of modern British food.
It tastes good, but also this recipe uses storecupboard classics that we never normally cook with - Heinz tomato ketchup and Heinz tomato soup. Essentially this is a tandoori chicken recipe with a lightly spiced tomato-curry sauce using quick-to-hand ingredients.
This is a family-friendly version rather than adult-authentic, so if you want some heat added just add 2 - 4 green chillis to the tikka masala sauce and you should be okay. Also, you could circumvent all the spices by using a tandoori masala for the chicken-yoghurt marinade and a tikka or Madras curry powder in the tikka sauce.