Eating
Shopping, cooking, the fridge
Batch cooking when your appetite has shrunk
Cooking a full pot and freezing it in small portions means the food is there on the evenings you only want a little.
What to keep in the fridge when you're not hungry
On low-appetite days, the food that gets eaten is the food that needs no cooking. Stock the fridge for those days.
Lunch at work when you only want half
A small tub from home beats a meal deal you'll leave half of. The trick is having something ready on busy mornings.
A Sunday shop for a smaller appetite
Buying less, and buying things that keep, cuts down on food going off in the fridge.