All I really do at the ground is place a bet, and if I get anything from the kiosk it's normally only a drink.
The quality of food as far as I remember has ALWAYS been poor. I had a cheeseburger last time we were in the Prem which had me throwing up all evening and all sunday, and then a pie at the Derby play-off game in which the sauce was just water.
If I want anything to eat now, I go to KFC/Burger King.