We do try to follow the aggregation approach in our household but it still averages out as the same amount of preparation time per meal; time required to prepar

We do try to follow the aggregation approach in our household but it still averages out as the same amount of preparation time per meal; time required to prepare ingredients scales linearly with their volume. plus it wipes-out one of our only two days off together. Unless you have huge freezer space that can accommodate multi-week batches there's no real way around that.