Lottie is another one on Eden - I used to struggle to get her to eat all her food, particularly her kibble, but since moving to Eden, it's been cleaned out bowls all tne way (I do give her a little Naturediet with it occasionally, but only about a tenth of a tray, or so,eti,es a sardine in tomato sauce which she liuuurvea).
You can get a 400g sample of Eden for £5 including postage, from their website. Not sure about samples for other brands, but would be surprised if you couldn't.