The meals you choose for your first order work as a starting point for future orders - When you make changes, you set a new default menu.
Since we make weekly changes to our rotating menu, your pre-selected meals for upcoming orders could change from week to week. If one of your selected meals is taken of our menu, it'll automatically be replaced with another delicious dish.
Of course, you're free to update your orders (up to 3 weeks in advance!) before your deadline.