The site's pretty good, I'm not sure if I like the colors but that's just personal preference. The text at the top of the main page is too close to the image on the right in my opinion. Also that image on the lower left took too long to load, and I'm on DSL. I'd definitely try to make the image file size lower. And I know this is pretty picky but I noticed that the bottom image doesn't blend that well on each side with the background, not a big deal but it was something that caught my eye. Other than that stuff I think the site is pretty good and represents the restaurant well.
Yes its good simple site. I think if you add some small picture in the item then it will very fine, because some foods picture may attract people. Add more picture of your restaurant with a click of graphics design. Place also a matter for customer like me. All the best.