Seems like a good idea to implement this rule though, as it would make you think about how you use your spells more. Overall I think the closer you can be to core DnD (without compromising your artistic license too much), the more enjoyable it gets in general. And what you suggest, to me at least, does not seem to bothersome anyway. Even if they decrease the amount of food you find in the world, you would still be able to find enough stuff to do your long rest.
Slighly off topic here, I haven't tried this spell on BG 3 really, does Goodberry and create food give you permanent rations/food in BG3? If not I really hope they will add that.
Which spells should are usually a bonus action under 5e anyway?
and just to float a balloon idea here, would any of you guys consider it a bad idea to add areas where you cannot rest at all?