Place chopped broccoli in 8"x12" baking dish.
Set aside to thaw.
Cut chicken in cubes, brown in butter about 10 minutes until they are fork tender. Place on broccoli.
In 1 quart saucepan over low stir cheese and milk until smooth.
Pour cheese mixture over chicken and broccoli.
Sprinkle with almonds.
Bake 20 to 30 minutes at 350 degrees, until heated through.