Melt margarine in a skillet; add flour and blend. Add milk and egg yolk; blend until smooth. Add grated cheese; stir until melted. Add spices. Cook broccoli. Arrange broccoli, sauce and chicken in a casserole dish. Repeat. Sprinkle Parmesan cheese over top. Broil until cheese turns brown.
From <A Taste of Louisiana>. Downloaded from Glen's Mm Recipe Archive,