Cut chicken in half and place in large casserole dish. Season with salt, pepper and poultry seasoning. Bake 20 minutes, or until chicken is cooked through. Remove from heat and let cool before shredding. Set aside.
While chicken is baking, heat 2 Tbsp. oil in large skillet over medium heat. Add mushrooms and onions and cook 7-10 minutes, or until onions are translucent. Add kale and cook 3-5 minutes, or until wilted. Stir in flour to coat vegetables. Stir in milk, broth and water, and simmer 2-3 minutes, or until sauce starts to thicken slightly
Transfer vegetables and cooked quinoa to the casserole dish and mix with shredded chicken.
Combine breadcrumbs, parmesan cheese and 1 Tbsp. olive oil in small bowl. Sprinkle on top of casserole.