I am a huge McCalister's fan. I was so sad when the closed the ones in Kansas City.
They have the BEST SWEET TEA anywhere. Seriously they do. I also love the Muffuletta Sandwich and the baked potatoes. Their soups are pretty good too. They also have an allergen menu just ask to look at it if you are allergic to something.
You go up and order they give you a # and bring the food to you. They come around and give you free refills and top you off on your way out the door.
Staff is great super friendly. I will be back next time I am in Springfield.