We currently have a shocking amount of food waste and it drives me crazy.
At the moment it's bananas - DD went through a phase of wanting a banana instead of breakfast as she dashed to high school so I bought them, only for her to decide she's bored of bananas but not actually say anything. I'm making a lot of banana muffins and smoothies to compensate.
Ditto avocados - they are rock hard for days, ripe for 20 minutes then black and mushy. Also burger buns, which go mouldy as soon as the packet is open.
DD and DH are both a pain in the ass for Not Being In The Mood for various meals. I am of the It Needs Using Up mindset, so there are frequent arguments about it. I don't care if you're not in a stir fry mood, the noodles you asked me to buy in the shopping need using today, so stir fry it is. Ditto ready meals and salads.
I do batch cook a lot, which helps. Also most veg will happily become soup, and I dearly love soup; it's my favourite part of winter.