Shrimp and Chicken Au Gratin Recipe

1/4 cup flour

1/2 teaspoon white pepper

1/2 cup shredded sharp cheddar cheese

2/3 cup chicken stock ro white wine

1/4 cup (1/2 stick) butter

8 ounces mushrooms, sliced

2 tablespoons shallots, minced

2 tablespoons butter

1/2 cup seasoned bread crumbs

2 large boneless chicken breasts, grilled and cut up into bite size pieces

1 pound medium shrimp, cooked, remove tails

2 (10 oz. pkgs) frozen artichoke hearts, cooked according to pkg direction, cut into quarters

2 cups any desired cheese, shredded