I end up home alone in the evenings at least 1-2x week.
I find that on those nights, I don't cook. Instead, I eat EVERYTHING in my pantry.
Chips...cookies...something canned...
Then I move on to the freezer and have something microwavable or icecream.
I HATE IT. But, I am hungry and I just don't feel like have a meal for one, so I just snack.