Here's the list of approved packaged foods ~ keep in mind that there may be products out there that aren't on the list, and things that were on the list may change their ingredients, so always read labels, too.
http://drmcdougall.com/packaged.html
Richer Foods - High Simple Sugar Foods
* Breakfast Bars & Cookies
and
Richer Foods - Higher Fat Foods
These products are listed here because they are higher in fat than the other products on this list, either because of nuts and seeds, and/or small amounts of added oils. These products should be used sparingly, if at all, and with the understanding that they are rich foods.
* Breakfast Bars & Cookies
You'll find the Clif and Larabars in the last category (Richer - Higher Fat) but there are also some things listed in the Regular and the Richer sections ...
HTH
**edited to add - I'm sorry! I forgot this was in the MWL forum. That list is for the 12-day -- which might make some good traveling treats, but most wouldn't likely be MWL compliant**