Ever since I heard of the Jucy Lucy (when "Man vs Food" visited the Twin Cities) I've needed to try my own version. Stuffing the cheese inside of the burger, keeping it warm and gooey with every bite, makes the Jucy Lucy unbeatable.
When you buy the meat, splurge for the more expensive, higher quality ground beef. It makes a huge difference. You can use any cheese inside with a perfect friend on top. The combinations are endless; blue cheese & bacon, swiss & mushrooms, pepperjack & roasted peppers...all inside of a hamburger buns. Here's the first couple attempts at my version. I'll definitely be trying more.
You can see more of my meat projects here - http://www.sugarandsaltkitchen.com