Sitting right across from the TI Sports Book is an expensive Chicago Style hot dog and sausage place, but when you want convenience and on-the-go, Little Richies got your back.
I went with the beef combo based on other Yelper's suggestion, and it looked/tasted fantastic. Even though it's expensive, the polish sausage with beef really hit the spot, with just the right portion. Better yet it goes well wonderfully with whatever sports you watch at the sports book.
Try to avoid peak hours (regular dining hours, drunk people, hungover people) as it can be a little bit of a wait.