Sole - With poultry

1 1/2 lbs fresh spinach , cleaned 1 lb sole fillet 1/2 teaspoon Old Bay Seasoning 1 teaspoon olive oil 3 green onions , chopped 1 garlic clove , crushed 2[...]

4 tablespoons butter , Divided 2 tablespoons olive oil 3 tablespoons flour 2 cups fish stock or 2 cups chicken stock 1 cup mushroom , sliced 1/2 cup celery ,[...]