I always love the presumed exorbitance of Deer Valley. The truth is that DV lodge food is no more or less expensive than any other resort. It's all too expensive.
The difference is that the quality at DV is exponentially higher. Yes, lunch will cost you 8 to 12 bucks, but it will be fresh, tasty, copious, fast, comfortable, and the servers will actually be friendly to you.
Now, if you go to a privately operated establishment at DV (e.g., Stein's, Glitterind, Goldener Hirsch), you are going to be paying a lot more, but again, it is a whole different deal than a bowl of chili and oatmeal raisin cookie, and probably not something you want to do every day down the slopes.
Or, go to Albertson's and shove Cliff Bars in your coat, and wash 'em down with the free water found at every lodge on the mountain.