Spray a frying pan with low calorie cooking spray and place over a medium heat. Add the chicken and cook for 5 minutes until the chicken has coloured.
Add the peppers and baby corn to the pan and cook for another 5 minutes.
Add the banana ketchup and tinned tomatoes and mix well. Let simmer for 10 minutes until the chicken is cooked through.
Season with salt and pepper to taste and serve with a side of rice.