Chicken in spinach cream sauce

CHICKEN BREASTS WITH SPINACH AND CREAMSAUCE

6 chicken cutlets (I used skinless, boneless chicken breast)
1 c. water (I actually added more water for more sauce)
2-3 celery stalks, chopped
1/2 - 1 onion, chopped
1 tsp. salt
1/4 c. butter
1/4 c. flour
1/4 tsp. pepper
1/2 c. grated Parmesan cheese
2 pkgs. frozen chopped spinach (I used fresh spinach - 2 cups)
1 c. cream (I used 1% milk and used more then the 1 cup as the sauce was way to thick)

Cook chicken in 1 cup water with celery, onion and salt for 20 minutes.
Reserve 1 cup of the broth.

Melt butter. Stir in flour, pepper, broth and cream until thickened and bubbly.

Remove from heat.

Stir in Parmesan cheese.
Stir 1/2 cup of cream sauce into spinach.

Place chicken breasts on top and cover with rest of sauce.

Bake 375 degrees for 25-30 minutes uncovered.