Make the dressing by combining 1/4 cup of ranch, 1/4 cup of Greek yogurt, and 1 press garlic clove in a small bowl. 
Spread the dressing amongst two naan flatbreads. 
Now shred 1 cup of fresh mozzarella cheese and distribute it between the two flatbreads. Then dollop a quarter cup of ricotta cheese on top as well.
Lastly, add 4 ounces of sliced baby Bella mushrooms and 1 cup of fresh arugula on top. 
Bake at 370 degrees for 8-10 minutes, or until the cheese is fully melted. 
Notes
Can I make it ahead of time?Yes, you can make this flatbread pizza ahead of time. Once you have baked and cooled the mushroom flatbread, place it in an airtight container in the fridge. When you are ready to serve it, just warm it up in the oven for a couple of minutes until the cheese is melted.Do you love quick vegetarian meals? Try these!