Mainly an intellectual exercise (but hey, could be useful at some point). Not happy with how everything is laid out, but it'll do for now.

Stuff to add:

• more restaurant info (address, phone, etc)
• "new" and "special price" indicators
• sub-item options (e.g. "add chicken: $2.50")
• photos
• add basic styles for very large screens (e.g. in-restaurant TV displays)

Other misc. notes:

• Styles are mobile first and probably an unsupportable mishmash of ems and percentages (maybe not — the large screen scale up went seamlessly).
• The responsive nav is very rudimentary.
• I'm not really a fan of the way the titles wrap around the item number.
• At smallest size the price gets squished into the right margin.
• Some tags are left un-closed in order to avoid whitespace messing with inline-block elements.