A place a lot of people miss is this little old wooden shack, just a short way up the road from the Town Lift. I can't remember its name! But it did pizza and suchlike. Very traditional american decore, and very basic. But you could clump in wearing just about anything and not get a second look, and the prices were normal. Not Park City prices.
For something upmarket (no hat hair or ski boots) you have to try Adolphs. Great traditional european food (lots of veal things) and excellent service. Very civilised. For a big fat steak dinner, Grub Steak out the back of Prospector. For good cheap mexican, El Chubasco in the middle of Prospector.
For some good options if you're skiing the Canyons, there's some nice places out at Kimble. Good Greek place facing Smith's groceries, and people like Suede, the nightclub near the liquor store.
Best thing to do in PC is to ask people on the hill for recommendations. It's easy to go wrong, there's a lot of fly by night places.
No Name (AKA The Alamo!) is a great noisy beer'n'burgers place. And there's an even more "basic" pub next door, a locals place, called O'Shucks (it's full of peanut shells).