Killington has the highest food prices of any mountain I've ever been to.
Stowe is the highest I've seen in the east, but worth every penny IMO. I've had exceptional food in Spruce Camp.
I've had $6 slices of garbage pizza in K base lodge.
I'd rather pay $12 for a gourmet panini, than $6 for a slice of crap pizza even if they both fill me up just the same.