For my son, we only at this time allow him to eat food from two restaurants  
and that is because the managers have made accommodations for us.  If you  
state your case most McDonalds hamburgers can be made safely.  I toured the  back 
and how the patties themselves were cooked.  As long as they change  their 
gloves and treat the order special, it can be made safe.  My son ate  the french 
fries for years until the new allergen info, now we avoid them.   Seems the 
kid needs less asthma meds now, hmmmmm
 
Also we have a place called Mr. Pita.  At this take out place, they  fix my 
son's pita in a separate area, with freshly opened packages of the  ingredients 
he wants on his pita.  We have never had a problem.  At  one point they had a 
special stone to make milk free pita pizzas for him, but  when they needed to 
replace the oven we lost that option.
 
E.J.