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butter flavored cooking spray

1 medium sweet potato, peeled and cut into quarters

1 cup onion, chopped

1/2 cup celery, finely chopped

1 cup Big Y fat-free skim milk

1/2 cup Big Y fat-free sour cream

1/4 cup Big Y all-purpose flour, divided

1 1/2 tsp Big Y butter

1/2 cup Big Y reduced fat shredded cheddar cheese

1 tsp Big Y paprika

2 tsp less sodium seafood seasoning (such as Old Bay®)

1/2 tsp Big Y ground black pepper

1/2 lb cod, cut into bite-size pieces

1/4 lb raw medium shrimp, peeled and deveined, thawed

1/4 lb bay scallops

1 10-oz. pkg. Big Y frozen chopped spinach, thawed

1/4 cup reduced fat shredded mozzarella cheese