I have this one - more of a "from scratch" recipe:
Chicken Broccoli Casserole
1 1/4 lb fresh (or 20oz frozen) broccoli, chopped & cooked
4 - 6 c cooked chicken, coarsely diced
6 Tbl butter or margarine
6 Tbl flour
2 tsp salt
1/4 tsp pepper
3 c milk
1/2 c mayonnaise
1 tsp lemon juice
1 c Cheddar cheese, grated
2 Tbl butter or margarine, melted
1/2 c bread crumbs
Grease a 9x13 baking dish. Make a layer of broccoli, then chicken. In a saucepan melt 6 Tbl butter; stir in flour, salt & pepper. Add milk gradually, stirring until it comes to a boil. Remove from heat.
Combine mayo & lemon juice with white sauce & pour over chicken/broccoli. Sprinkle with cheese. Combine 2 Tbl butter & bread crumbs; sprinkle over all. Bake at 350 for 25 - 30 min.
Or, there's this one using soup:
Chicken Divan
20oz frozen broccoli
4 c chicken, cooked & sliced
2 cans cream of chicken soup (can substitute 1 cream of celery)
1 c mayonnaise
1 tsp lemon juice
1/2 c sharp cheese, shredded
1 Tbl butter, melted
1/2 c bread crumbs
Defrost & drain broccoli; arrange in greased 13x9 pan. Place chicken on top. Combine soup, mayo & lemon juice. Pour over chicken. Layer cheese over all, then combine crumbs & butter; sprinkle over all. Bake at 350 for 25 - 30 min.
[NOTE: The original recipe called for 1/2 tsp curry powder, but I've never used that! A friend also adds 1/2 c parmesan over the bread crumbs.] Mmmmmmm