Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      teaspoons     olive oil
   1      medium        onion -- thinly sliced
   1      clove         garlic -- minced
   1      can           whole tomatoes -- drained, coarsely
                        -- (14 1/2 oz.)
   1      cup           chicken broth
     1/4  cup           dry white wine
     1/2  teaspoon      dried thyme
   1      teaspoon      salt
     1/2  teaspoon      black pepper
   4                    cod fillets
     1/2  pound         fresh spinach -- cleaned, stems
                        -- removed

Preparation:

Heat oven to 350F. Heat oil in nonstick skillet. Add onion and garlic; cook until onion is very soft, 5 minutes. Add tomatoes, broth, wine, thyme, 1/4 teaspoon salt, an 1/4 teaspoon pepper, simmer, uncovered, until sauce is reduced and thickened slightly, 5 minutes. Season fish with remaining salt and pepper. Place in 13x9 inch baking pan. Add sauce; cover. Bake in 350 oven 14 minutes. Add spinach to sauce around fish. Bake 5 minutes or until fish flakes.