Garlic Naan Flat Bread Pizza with Mushrooms

Shred cheese on large side of box grater, about 2 1/2 to 3 cups.
 
Stem and thinly slice mushrooms or separate maitake into florets. 

 
Heat a skillet over medium-high heat with olive oil, 2 turns of the pan.  Add mushrooms and brown, about 8 minutes. Add shallots and season with salt and pepper. Stir another 2 minutes then add stock to deglaze pan. Wilt in kale and allow the stock to almost evaporate completely. Turn off heat.
 
Meanwhile, preheat broiler and preheat a griddle pan over medium-high heat. Add a sprinkle of water to the pan and brown the naans two at a time on both sides, blistering the bread. 
 
Arrange the breads on baking sheets and top evenly with mushrooms and kale then cover with cheese. Broil to bubble and brown the cheese, serve hot.