Salad crops lettuce, radish, spring onions, carrots,beetroot. Or one courgette, Tomatoes

maybe some herbs for spices mite be a more realistic idea considering the size and put it just outside your door so its easy to snip some of while your cooking.if you use mint put it in its own flowerpot within the sink or it will run rife ove the whole thing.

I didn't mean all at once Noseypotter lol

no mine was just another sugestion great . you misread my comment your idea would work to.

Thank you both, Great & Noseypotter for the ideas. Will start with some salad leaves ie.little gems and see how it goes.Have filled the sink with my own compost. I call it my black gold. Weather went cool again so will sow seeds indoors then plant out into the sink.

good luck rohima