I use iOS Reminders to do a basic version of this. Each of the meals on the list are a top level reminder on the Shopping List. All of the ingredients for that

I use iOS Reminders to do a basic version of this. Each of the meals on the list are a top level reminder on the Shopping List. All of the ingredients for that meal are an indented sub-item to that reminder list. Each week my wife and I plan what meals we want to eat and "unselect" them from the reminder list (you have to choose: Show Completed) and then that automatically provides the shopping list. Before we go shopping we check what we have in the cupboards and mark those off the list - the remainder is what we need to buy. Each of the high level recipes has meta data with the link to the recipe if it's online or the main protein so that we can try to vary things as we plan. And it's shared between us to-boot, so whenever one of us is near a supermarket and we're wondering if anything is needed we have a sync'd up shopping list in our pocket.