meals, provisions, board
饍 centers on prepared food for eating: meals, provisions, or the board (as in a table spread with food).
饍 combines the food radical 飠 with 善, which likely provides the sound and may contribute a sense of good or proper food. The exact historical development is uncertain.
The left side 飠 means food, and the right side 善 suggests something good or proper. Picture a table set with good food: a proper meal or board of provisions.
For セン, imagine a chef named Sen preparing a beautiful meal: Sen -> セン, and the food radical 飠 reminds you it's about meals.