It is Holy Week in Israel. This means that the whole week is like a sabbath. So not only can you not get a bacon cheese burger (bacon = not kosher, cheese+meat= not kosher).
Passover week means that there is an extra level of kosher. Mainly this means no bread. So when you order a burger you just get a meat paddy on a bed of lettuce.
Also, this mean that you can not get beer. In resteraunts that observe passover week the beer taps are covered with clothes. However, the waiter informed me that I could order a shot of whiskey. Whiskey is about $20 a shot.