Smashburger has consistently delivered a great burger each and every time I have visited. The place is clean, full of friendly helpful staff, and great tasting food. Smashburger offers a nice selection of burgers and toppings, grilled chicken sandwiches, and salads. They offers sides like fries, smash fries which are tossed in oil and rosemary, sweet potato fries, and onion strings.
Pictured below is the Iowa Burger with American Cheese instead of Blue Cheese and the regular fries.
It is good. Check out the 2 locations here in the Des Moines area at Iowaeats.com.