If you're in the UK nearly any supermarket sells couscous! Or at least I used to buy it all the damn time from the Co-Op. Seconding couscous, btw. If you've got leftover pasta sauce but can't be arsed with the actual pasta, put it on couscous. I used to put my leftover bolognese on it. My usual can't-be-assed thing is.... half a can of baked beans (other canned things in a tomato sauce would also work probably, but i personally dislike most other canned things in tomato sauce. Also reliably informed that american baked beans are different to british ones, so? uh?). Half a can of tinned sweetcorn. Frozen peas (when I say peas i mean petit pois, btw. If you mean something more like garden peas and you don't like them, try petit pois, they're smaller, crisper and sweeter and just generally better in every way). Seasonings to taste- things that work: pepper, chilli flakes, sweet chilli sauce, sometimes like brown sauce. If you're up to chopping, you can put things like other veg and cooked sausage or ham (if you have slices then you can just shred them for ease). If you want you can also grate in cheese. Put either in bowl in microwave for between a minute and two minutes, or on a saucepan on the hob until hot through. Eat.