This is my guest recipe.  My go-to for whenever we have guests over.  It's from an old Lion House cookbook, and I've given the recipe out a dozen time.  Even my mother-in-law, who doesn't cook (my husband started making his own frozen burritos/quesadillas/ramen at age 9), asked for this recipe and actually cooked it for her guests.  Yum!
Chicken Broccoli CasseroleUses: Broccoli2 
chicken breast halves
4 cups cooked 
broccoli1 can (10.5 oz.) cream of 
chicken soup
1/2 cup milk
1/2 cup mayonnaise
1 cup grated cheddar cheese
1 tsp lemon juice
1/2 cup buttered crumbs
Rice (4 cups cooked)
Simmer 
chicken breast in water just to cover for about 30 minutes, or until tender.  In the mean time, cook 
broccoli according to package directions. When 
chicken is tender, remove from broth and cool enough to handle.  Make a sauce by combining soup, milk, and mayonnaise, and stir until smooth. Add cheese and lemon juice.
In a 9x9x2 pan, arrange 
broccoli on the bottom of the pan.  Break chicken into chunks and lay over
broccoli.  Pour sauce over 
chicken and 
broccoli to cover 
chicken pieces completely.  Cover pan with foil and bake at 350 for 30 minutes (after 20 minutes, remove the foil and sprinkle the buttered crumbs on top, let finish cooking uncovered).  Serve on top of rice.