Zara first congratulate u for the start of the new life ,God bless your life with happiness.
Zara it depend on what type of food he like,try to make his favourite food.otherwise there are lot of things u can make.
Make something filling as it's probably his main evening meal and after work he is most likely to be hungry. A nice boneless karai chicken salan with some boiled rice is a good, simple tasty option.