In large bowl, mix onion, broccoli, chicken, garlic, soup, heavy cream and spices together.
Pour into 9x13 inch casserole dish. Bake covered for 45 minutes. Remove from oven, uncover.
Preheat oven to 400 degrees.
Prepare Bisquick dough as directed on package.
Add remaining herbs.
Spread dough evenly over pie, leaving ½-inch space around edge of pan. Return to oven and bake 20 minutes or until biscuit topping is golden brown.
Recipe by The Saturday Evening Pot at http://thesaturdayeveningpot.com/2014/03/picky-eaters-try-this-recipe-chicken-and-broccoli-pot-pie-with-black-pepper-and-sage-biscuit-topping.html