There actually isnt anything wrong with eating kebabs - the meat itself is not a risk factor any more than any other meat.
By law now, the meat must be carved from the spit and the fried up on the grill before it is served anyway, to ensure it is properly cooked. You can ask them to do this anyway, just let them know you are pregnant.
As far as the salad goes, again this is no riskier than buying a salad sandwich from a sandwich shop...You can mention that you are pregnant, ask them if they have washed all their salad vegetables, and even ask them to use the freshest product they have cut (even if it is not on display) iykwim.
Most places are very aware of these things, so long as you let them know you are pregnant, they should be happy to oblige you.