Jacket, beans and veggie sausage

I always find it difficult to decide what to eat when I'm on my own. It doesn't seem worth cooking and leaving loads of leftovers just for me. Mr VST always goes for something 'naughty' when he's feeding himself, usually pizza. I usually delve into the freezer. This evening I went for a jacket potato, baked beans and a Linda McCartney sausage.

I didn't always eat like this when alone. When I was a student I would make big batches of lasagne or shepherd's pie and freeze portions. What do you eat when you're cooking for one?