Chicken Upside Down Dinner

1 whole (4 cups) already cooked Costco chicken.  If using chicken breasts, lightly salt and pepper and cook till done, if cooked too long it will be dry. 
1 bag frozen peas, optional
1 bag frozen corn, optional (or use canned corn)

Sauce:
3 cups water
4 bouillon chicken cubes (or use chicken broth)
2 cups milk
6T butter
6-7T flour
1/2tsp salt, optional
1/2tsp pepper

Melt butter, stir in flour, salt and pepper and cook over low heat until bubbling.  Remove from heat and stir in the broth and milk slowly so no lumps develop.  Bring to a boil, stirring constantly.  Add the 4 cups of chicken, peas and corn to the mixture and mix. 

Grease a 9x13 pan, and pour the mixture into the pan

Corn Bread Topping:
1 cup flour
1 cup cornmeal
1 cup milk
2T sugar
2tsp baking powder
1/2tsp salt
1/2tsp baking soda
3T shortening

Combine all the dry ingredients in a mixing bowl, cut in the shortening.  Add the milk and stir it up. Drop spoonfuls over the chicken mixture. 

Bake at 400 degrees for 30 minutes or until bubbling.