The Atkins website has a generic, but very extensive, article on Eating Out.
http://www.atkins.com/how-it-works/...g-out-love-this

Red Robin is very flexible for any diet needs. All burgers can be wrapped in lettuce, any side replaced with steamed broccoli or other veggies. Many salads fit the the Low Carb lifestyle.
Try their Customizer interactive menu, now also an app, to create and get nutritional and allergen information for whatever meal you want.

http://www.redrobin.com/customizer_hub#_customize