http://www.burgerville.com/Static/Files/Allergy_Table_Web_v2.pdf and also
http://www.burgerville.com/uploadedFiles/Our_Food_-_Special_Dietary_Needs/Ingredients_Information_08.pdf
Burgerville of course is not the only option, we just choose it for the occasional fast food "need" :) Other options I have looked into are
- McDonalds Hamburgers are also OK - here is the link to their allergen page http://www.mcdonalds.com/app_controller.nutrition.categories.ingredients.index.html
- Wendy's is also OK - here is the link http://www.wendys.com/food/pdf/us/nutrition.pdf
- Burger King is also OK - http://www.bk.com/#menu=3,2,-1 this site let's you sort according to allergen which is a very nice feature
- Subway also offers a bunch of different options that are OK http://subway.com/subwayroot/MenuNutrition/Nutrition/pdf/AllergenChart.pdf