1. In a large skillet, saute onion in butter until onion is tender. Add garlic; cook 1 minute longer. Stir in the spinach, cream and milk. Remove from the heat; stir in 4 tablespoons cheese, bread crumbs, salt, marjoram and pepper.
2. Spoon into a greased 1-qt. baking dish. Sprinkle with remaining cheese. Bake, uncovered, at 350° for 40-45 minutes or until cheese is lightly browned. Yield: 6 servings.