Not interested in preparing healthy food, most usually eat steak and rice and beans

Also not interested in counting calories and ensuring I get enough protein.

What would happen if I dedicated myself to lifting but dont do anything with my diet?

I'd like to join the Marines so I'd like to get in shape but just cant be bothered to cook. I can however order 4 mcdoubles with no buns and no ketchup to get my protein would that work?