I know it's not a restaurant but I have to give props to Harmon's grocery store. If you're looking to stay at home and have some great food this is where I always shop. They have specialty artisan breads that they bake daily. My favorites are the garlic or Asiago green onion. The blue cheese walnut is pretty damn good too. There's a white chocolate pecan that my wife loves.
They also have a "cheese counter" where there are over a hundred specialty cheeses imported from all over the world with a cheese expert that can help you pick out a cheese that matches your taste or the meal that you are preparing.
Laslty, their butcher shop is hands down the best of any major grocery chain in Utah. A couple weeks ago I picked up a baby petite fillet that I cooked on the BBQ grill that nearly melted in my mouth. Coupled with the asiago bread, a baked potato, some black label brie cheese and a Maudite beer I had one of the more memorable meals in my life. It was simply awesome and as good as any meal that I have ever had at a restaurant.