I've been using Mealtime [1] for a few weeks now and it's been a game changer - literally!
Every meal is different, simple, and healthy; and it's removed the hassle of having to figure out what to cook and what to buy.
It integrates with online groceries, but I believe it may only be available for the UK, unless the list of supermarkets changes based on location.
I'm not affiliated with them at all, just a happy customer