This company appears to be quite allergy aware, and all the restaurants except for Maggiano's have top 8 allergy menus similiar to the ones at Red Robin.
It is called the on the go potty, and although they sell liners, you can use regular old plastic bags. For anyone with little ones potty training, or newly trained, I highly recommend getting one. I used to be driving along when I was potty training the twins and one of them would decide they needed to go just when we got far enough away from everything that there was no going back. Then there was no way I was dragging three little children into some random store to try and find a potty, so the on the go potty became my best friend. We don't use it very often these days, but if you are going camping and happen to be no where near the bathroom, it can be extremely, extremely, extremely helpful. I could make some sort of potty joke here, but I am censoring myself.
Check out the Food Allergy Buzz's great review here
The Red Robin Mascot