I want users click, in the home page, on one of the KIND_OF_FOOD, and let them go to the (Level2) Hamburgers options, pizza options, etc
So then, when they choose a kind of Hamburger, pizza, etc, they can get more information about it, including the option to buy.
I’m not sure about the precise relationship you want to have between these two data types, but here’s one approach you could take:
Imagine that you have a custom data type called “Ingredient” for things like bacon, salad, etc.
You could also have a custom data type called “Food”. Food would have a text field for the name (this would be “Hamburger”, “Pizza” etc.), and it would also contain a LIST OF INGREDIENTS as a field. This creates the relationship between the two data types. Hope this helps!