Revive on 5

This is the best place to eat at the Royal Adelaide Hospital - far better than the downstairs sandwich shop. Visiting someone in hospital isn't usually a pleasant experience, but the bright open spaces here mixed with a great range of food at reasonable prices makes it far better - you can even sit outside and look onto the botanic gardens if you're early enough to get a seat there.
My one complaint is they're not super organised, it's hard to work out where to order what and it does get busy.