Flounder with butter

1/4 cup onion chopped 1/8 teaspoon rosemary leaves rushed * 2 tablespoons butter or margarine 9.5 ounces spinach frozen, chopped 1/4 cup almonds toasted,[...]

4 celery ribs , chopped fine 2 teaspoons onions , minced 3 tablespoons butter or 3 tablespoons margarine 2 teaspoons dill (or to taste) 1/2 teaspoon tarragon[...]

1 (10 ounce) package frozen chopped spinach , cooked according to package directions,drained well and squeezed dry 1 lb fresh small flounder fillets salt and[...]