Chicken and Dressing Casserole

cornbread (about 4 C. crumbled)
4 large chicken breast, cooked and cubed
1 10.5 oz. can cream of mushroom soup
1/2 tsp. poultry seasoning (optional)
4 eggs, boiled and chopped
1 small onion, chopped
1/2 tsp. black pepper
1 stalk celery, diced
2 C. chicken broth
2 T. melted butter
1/4 tsp. salt
Combine all ingredients in a bowl and pour into a 9 x 13, lightly greased casserole dish. Bake at 350 degrees for 40-50 minutes or until set.
Gravy:
1/2 C. unsalted butter
1/2 C. all purpose flour
1 quart chicken stock
1/3 C. heavy cream
1/4 tsp. salt
1/2 tsp. black pepper
pinch of cayenne pepper

How to make it :

Melt butter in a saucepan over medium heat. Whisk in flour and cook for 2 minutes. Gradually whisk in chicken stock. Reduce heat to low and cook and stir until thick enough to coat the back of a spoon, 4-6 minutes. Stir in heavy cream, and season with salt, pepper, and cayenne pepper.
Serve the casserole with gravy over the top and a big side of mashed potatoes.