If he likes spicy food this is really nice and very easy (and you can make it as hot or not as you like).
Get a chunk of chorizo (not the pre-packed slices) and chop it into fairly small pieces. Fry with the chicken and an onion, (I always steam the chicken first so it's cooked already). Add garlic and fresh chilli (or powdered chilli), some mushrooms if you want, tin of tomatoes, (or fresh tomatoes or passata), a little sugar and maybe a bit of gravy powder. Cook the pasta and just stir in to the sauce when done. Dish up with a good sprinkle of fresh parmesan.
I am a bit of a bung it in the saucepan and hope for the best type cook but this always goes down well!
Best wishes