^^^
Culvers has a 'Pretzel Haus Pub Burger'. It's seasonal, just like their Walleye Sandwich'. I think both end sometime in Aug and return the next spring.
That bottom layer of fresh onions is what makes their burger.
5 guys doesn't have a drive thru. Ordering inside reminds me of subway...slow and too many decisions to make and it's higher priced for what you get.