A food cart is like a little kitchen on wheels that sells food on the street. Imagine a small car that is pushed or pulled around by a person like a bicycle. It has a place to cook and prepare food and a display where you can see what's available to eat.
Instead of going to a big restaurant or fast food place, you can buy food from a food cart right on the street. They usually have smaller menus, so they can focus on making a few things really well. Some food carts sell things like hot dogs and pretzels, while others sell more unique foods like tacos, dumplings, or even sushi.
Many food carts are family-owned businesses, and they can be found in big cities and small towns all over the world. They are a great way to try new foods and support local businesses!