rubbishvegans has some good basic stuff, although it's not often updated. I find that a surprising amount of things can be made with olive oil instead of butter, that any combination of beans and rice is filling and nutritious and, when in doubt, make couscous.

Tabbouleh is an easy tasty dinner or side:
chop tomatoes, fresh mint and a small salad onion (or not, if you hate onions) into a good glug of E.V. olive oil and lemon juice. Hit a garlic clove with the flat of a knife and leave the bruised lump of it in with the tomato mixture. Meanwhile, soak cracked wheat/bulghur wheat in hot water with some salt until it's completely puffed up. Takes half an hour to an hour. Drain the wheat, hike the garlic clove out of the tomato mixture and dress the wheat with it. Vary components as you like. Eat with nice bread/houmous/tsatsiki/a spoon out of the fridge.