rice cake
饠 centers on a specific kind of rice cake. It is a rare kanji with a narrow, concrete meaning.
饠 combines the food radical 飠 with 羅, which likely contributes the sound. The character was created to represent a type of rice cake.
The left side 飠 indicates food, and the right side 羅 looks like a net or spread. Picture a net full of sticky rice cakes being served.
For ラ, imagine a large rice cake being pulled apart with a satisfying 'la' sound: la -> ラ, as the sticky cake stretches.