check this site out
CarryOut Directory, they offer a very cool and simple to use business website where you can actually list your menus with images if you choose. You can also add printable coupons, business hours, payments accepted and so on all for about $20/month. If you had a website like this developed you're talking about a couple of thousand dollars upfront not to mention the monthly cost of hosting the site and maintenance. Worth checking them out.
Good Luck!!!