Everything you're looking for in a greasy spoon. It's very tiny, but the food packs a wallop. Booth seating inside, and a couple picnic tables outside. They've recently installed digital menu boards with great descriptions of their burger and hot dog toppers.
Primarily serving burgers and hot dogs (of which they have a huge selection), they also have fish and chicken variations. I got the fish and chips. The batter was flaky and the cut of fish was thick. The chips were crisp. Frozen crinkle cut, but who cares when they are cooked and seasoned right. Husband and son got burgers. 100% angus beef, in shop made patties. Gorgeous looking and delicious tasting. The veggie toppers were fresh and vibrant. We wolfed everything before I even thought to take pictures. Their shakes are otherworldly!! We didn't even bother with dessert, that's how good they are. But if you're just looking for a treat, they have soft serve ice cream, and a variety of in store made treats on a stick.
I highly recommend making this your stop before heading to the zoo. Much much more bang for your buck.