Anyone ever go to Burger Bar in Roy? We live close by but hardly go there any more. Great shakes and malts but pretty meh burgers iirc. They got a spot on Diners, Drive-ins, and Dives years ago. Guy was underwhelmed, to say the least.
Maddox is a go-to for us being further in the north. Hell I vaguely remember when they had a drive-through in Riverdale. Also, I think they still have a small drive-through in Layton for chicken only or some such. We go there for turkey bugers and shrimp cocktail (not kidding, it's great). I was never that impressed with their sit-down fare, although it is my parent's hands-down favorite high-end restaurant, as high end as it may or may not actually be. It is expensive enough to qualify though.
Lastly, how about Nielsen's Custard, Bountiful and Layton? Good food in general but their custard is ice cream on another level. Pretty sure the secret ingredient is crack.