Combine broccoli and chicken in a buttered 13x9x2-inch baking dish; set aside. In a bowl, combine soup, mayonnaise, lemon juice, and curry powder; stir to blend. Pour over the chicken and broccoli.
In another bowl, combine cheese, bread crumbs, and melted butter. Sprinkle evenly over the casserole. Bake at 350° for 30 minutes.
Chicken divan recipe serves 12.