01 - 
                Set your oven to 375°F (190°C) and let it warm up.
              
              
              
                02 - 
                Heat butter in a pan over medium flame. Toss in garlic and cook till it smells good, roughly 1 minute. Throw in your mushrooms, thyme, parsley, salt, and pepper. Let it cook until mushrooms turn brown and dry out, about 5-7 minutes.
              
              
              
                03 - 
                Grab a bowl and mix your cooked mushrooms with the cream cheese and mozzarella until everything's combined well.
              
              
              
                04 - 
                Make a little pocket in each chicken breast and stuff the mushroom cheese mixture inside.
              
              
              
                05 - 
                Put your stuffed chicken in a greased dish and sprinkle Parmesan on top.
              
              
              
                06 - 
                Let it bake for 25-30 minutes, until chicken's done and the juices come out clear.
              
              
              
                07 - 
                Scatter fresh parsley on top before you serve it up.