Shrimp Florentine

This recipe for shrimp Florentine can be made ahead of time. Shrimp Florentine 3 pounds fresh spinach (sautéed in batches in butter, and cooled)1 cup water1 diced onion2 minced garlic cloves1 chopped celery stalk1 bay leaf6 peppercorns1 1/2 pounds shrimp (shell on)1...