flatcake

noun

Plural:   flatcakes

A collective term for meals that are thin or not very thick, such as pancakes, latkes, pizza, tortillas, flatbread, etc·.  Figuratively, a flatcake is something rolled-over and flattened by a car, train, roll, or so.

Examples: 

Potato pancakes can vary from smooth thin crepes-likes up to lumpy, thick flatcakes.  (Source: J∙ Okram - Bartonian Potato Pancakes  ●  Cooking Recipe.)