Preparation
- Preheat the oven to 200°C/180°C fan/gas mark 6.
- Arrange the chicken thighs across a baking tray. Bake the chicken in the oven for 20 minutes, until cooked through.
- Meanwhile, sweat the leeks in the butter and add the flour to make a paste. Whisk in the milk to form a smooth sauce and simmer until thickened, then add the cheese, vegetables and seasoning.
- Cook the pasta, then drain and mix through the cheese sauce with the chicken. Pour into a baking dish, sprinkle with extra cheese and bake for 20-30 minutes.