You can parboil or grill the chicken before shredding, or deconstruct a roasted chicken from the store, or you can buy shredded chicken from the deli.
Sauté the onion, celery and carrots in a little oil until softened. Add the garlic and cook until fragrant.
Preheat your oven to 400 degrees F.
Combine the cream soups, the milk, and your seasonings and mix well.
Add the sautéed vegetables, peas, cheese, and chicken and mix well.
Add the quartered biscuits and fold through.
Spray a large casserole dish and turn the mix into the dish. Level and smooth it out.
Cook for 45 minutes, until the biscuits are browned on top.
Garnish with some fresh parsley or thyme.