Place a nonstick pan over high heat.  Sprinkle cheese in the middle of the pan and flatten it out into a circle.  Turn heat to medium low.  When cheese starts to melt sprinkle with salt. 

Place arugula and baby greens in a bowl.  Add black pepper and red wine vinegar.  Toss well.  

When cheese is nice and brown and crispy around the edges remove to a plate.  Fill with dressed arugula, fold and crunch.