how do you cook chicken?

[pokerhelper]

I'm seriously a true cooking newbie. The way I've always been shown how to cook chicken is pour a little oil in a pan, throw the a boneless chicken on over medium-high heat. Cook until white in the middle. Surely there must be a healthier way and also a way to keep it from being dry as hell. I just wanna make some chicken IN A HEALTHY WAY that I can eat with rice, or do whatever I want with it later and not spend an hour cooking it.