What kind of meals should I be eating to gain muscle and lose belly fat?

Im 19 male, 170 pounds, Im trying to gain mor muscle ( mostly upper body) I go to the gym aleast 3 times a week and lift for about an hour and a half and run abouta mile-2 miles after working out, Im not sure what type of meals to eat because I know i need to eat more proteins and such to build but idk how much is going to give me more pudge :|....if this makes sense help please :)