Any good and cheap meal ideas that won't go to waste?

First of all, I'm not a cooker. Second, I only have to cook for myself, so cooking large quantities will only go to waste (not just the food too if you know what I mean). And third, recipes that has doesn't conserve its freshness is a big problem for me. I know about the secrets of mac & cheese with added stuff to it, pancakes, noodles and pasta with various sauces ideas, which is great by the way, but I'd like to have some more simple recipes like that in my cookbook knowledge. Any other good ideas? Hope it might help some other people too other than myself.