Exactly, meaning that you get regular potatoes growing in the roots and tomatoes growing on top. You get both !

https://en.m.wikipedia.org/wiki/Pomato

On the other hand tomatoes and potatoes are the same family. You can even graft a tomato plant on top of a potato plant.

Look at painting of cherubims.

Also, in lot of cases you don’t even need it. When you live in the city center like that you can just walk 2 min to pick up your order.