How to gain weight for football?

Most people think I'm heavier than I look because I'm pretty much all muscle (not trying to brag). Im a junior starting at receiver and I'm 6' 150-160 pounds. I work out all areas quite a bit and consider myself to be in exceptional shape. I just want to gain weight so I don't get jacked every play! I'm not a lanky skinny guy either, I'm more built but I want a little more body mass. I guess it doesn't help that I take adderall and I don't over eat either.