A struggle to get a child to eat pizza? You would think they would be happy if he didn't want to eat it. With their culinary skills, I would hope they'd steer him into healthier eating habits...hot dogs and pasta aren't exactly the choices that come to mind.
If you start children off early, with healthy eating, it will stay with them. Worked with my family and with daughter. Plus, we are all healthier for it...lots of water, vegetables, fruit, a very balanced diet.