馒

Side-food radical on the left - compressed three-stroke form of 食. Indexes 馒 in the eating family with 饭 cooked rice, 饺 dumpling, 馆 restaurant, 饱 full. 馒 names the plain steamed bun (馒头) that anchors northern Chinese meals, so the food radical names the category precisely.

Right side 曼 supplies the sound - màn shifted to mán with a regular tone change. Same phonetic in 漫 overflow, 慢 slow, 馒, 蔓 vine. 曼's own 'graceful, drawn-out' sense contributes little here; the connection to bread is purely phonetic, useful for predicting that any 曼-character likely reads màn/man-ish.