Dish fetches a recipe by name, Trello URL, or any recipe URL — its ingredients can join the shop. Idea is just a name with no recipe to fetch. Both land in Unallocated until you assign them.
Items you usually have at home — they'll appear as a nudge instead of on the main list.
Stock-up items — not on the weekly list, but flagged when they're on special.
Supermarkets to check for specials.
Refresh the cached recipe card list from Trello.