Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  10      ounces        frozen spinach -- thawed
   2      teaspoons     butter
   1      small         onion -- chopped
   2      8 oz          cod or sole fillets
     1/3  cup           milk
     1/4  cup           light cream cheese
   1      tablespoon    bread crumbs
   1      tablespoon    parmesan -- freshly grated

Preparation:

In sieve, press moisture out of spinach; chop coarsely. In small skillet, melt butter over medium heat; cook onion for 3 minutes. Add spinach; cook, stirring often, for about 4 minutes or until moisture is evaporated. Spread in 8-inch square baking or gratin dish. Nestle fish in spinach mixture. Meanwhile, in microwave or on stove top, heat milk with cream cheese until smooth; pour over fish mixture. Sprinkle with bread crumbs and Parmesan. Bake in 400f 200C oven for about 9 minutes or until almost opaque. Broil for 2-4 minutes or until golden and fish flakes easily when tested with fork. Source: Canadian Living magazine