Dry fry the turkey mince with the chilli powder in a non-stick frying pan for 3 minutes, stirring frequently, until sealed. Add the green pepper with the chopped tomatoes and their juice with the herbs and red kidney beans. Bring to the boil then simmer for 8-10 minutes or until the turkey is thoroughly cooked and most of the juice is absorbed. Stir in the spring onions. Meanwhile heat the taco shells as directed in a preheated oven 180Â°C, 350Â°F, Gas Mark 4 for 2 minutes or in the microwave as directed on the packet. Place a spoonful of shredded lettuce in the taco shells, top with the turkey mince, a spoonful of fromage frais and sprinkle with the grated cheese, then eat.