what does your diet currently look like - you mentioned in another thread that you ate a lot of junk food... so what are your typical meals like?
thru my own experience, I've found that when people say they don't like vegetables, it's because they don't like how it's prepared... I was a rabid broccoli hater for ever - because the only broccoli I ever had was the boiled til it's dead frozen variety - once i tried the fresh stuff - roasted - i'm now a fan... experiment a little with different veggies - fresh most always taste better than canned or frozen.. and try different preparation methods.
You want to build some muscle so for that, I beleive you need protein, how much are you getting in a day?
what kind of carbs are you getting?