What is the Meal Planner and where do I find it?

The Meal Planner lives at /planner (top nav, right after Shopping list when you're signed in). It's a 7-day grid with rows for breakfast, lunch, dinner and snacks and a column for every day of the week. Drag any of your saved recipes (or a public one from the Directory) into any slot to plan the week — then hit Send to shopping list and every ingredient across the whole week merges into your shopping list, aisle-grouped and de-duped.