Cheesy Chicken Stuffed Shells with flour

2 chicken breasts , cooked and finely chopped 18 jumbo pasta shells , cooked per package directions 1/4 cup butter 1/4 cup flour 3 cups milk or 3 cups cream[...]

1 (16 ounce) box jumbo pasta shells 2 tablespoons butter 3/4 cup chopped onion 2 (10 ounce) bags frozen broccoli , thawed &, well drained 1 1/2 cups cooked[...]