Smashburger is awesome. So is 5 guys. So is Culver's.
The only problem with Smashburger is that their fries are a whole lot better if you dine in than if you take out. You get a smaller order if you take out, and every single time they've been soggy. I love the huge variety of sides they have, though (fried pickles, onion strings, sweet potato fries, etc). They have good dogs, too. And shakes.
5 guys is really, really good. I finally got smart and stopped getting their biggest burger and large fries. It's too much (I can't believe I'm saying that...). Love their bacon and cheese hot dog too.
And Culver's is just all-around great. Good burgers, good fries, good cheese curds, good custard.
On a slightly different tack, a
Firehouse Subs opened up near the Target at 119th and Metcalf, and it's damned good.
The above post explains both why I'm so fat and why I'm so broke.