Burger vs. Cheeseburger (with or without bacon)?...

You can have all the cheese you want - just not with meat.

I get cheese (only) pizzas all the time and they're usually very thick (with cheese, tomato sauce) which is quite delicious. I never knew how good a very thick cheese topping on a pizza could be!

P.S. If you go to very secular parts of Israel, I'm pretty sure you can get cheese with meat, though.

It's not the entire country that sticks to being strictly kosher although some places try to be vaguely kosher without being certified as such. I think some places just give it up and put cheese on meat. I think so, anyway.