All good suggestions so far.
If you like the Kitchen, go Upstairs, cheaper, same food.
For a REALLY nice dinner my wife an I love the Flagstaff House.
Radda over by the Ideal Market has great italian at a very reasonable price. I live near there, so that is our go to. Another good Italian place is next to King Soopers off 30th, but I can't remember the name.
Sushi Zanmai (sp?), West End Tavern (especially the upper deck in the summer), JAX for great seafood, Southern or Mountain Sun for kid friendly and good beer.
There are many more I am sure, but that will get you started.