Preheat oven to 350'' degrees. melt the butter and spread it in a 13x9" pan or casserole dish. Spread chicken over the butter. When building the layers do not mix.
Sprinkle pepper and sage over this layer and add your vegetables now. In a small bowl mix milk and bisquick. Slowly pour over.
In a medium bowl whisk together 2 cups of the chicken stock chicken graules and soup. Once blended, slowly pour over bisquick layer. You can add some French fried onions on top for some texture. Add last few minutes of bake time.. Enjoy!