Cook lasagna noodles as directed; drain and set aside so noodles do not stick together. In a saucepan, melt butter. Add flour and cook 1 minute. Add milk, 1/4 teaspoon salt, and 1/4 teaspoon pepper; cook 5 minutes. Set aside 1/2 cup of white sauce; add ricotta cheese and 1/2 cup parmesan cheese to remaining sauce. In a greased lasagna pan, lay 1/3 of the noodles, 1/2 of the ricotta mixture and 1/2 of the spinach mixture. Sprinkle with 1 tablespoon parmesan cheese. Repeat. Place remaining lasagna on top. Spread with reserved 1/2 cup of white sauce and sprinkle with parmesan cheese. Bake at 450 for 15 to 20 minutes or until top is golden and lasagna is heated through. Let stand 10 minutes before serving. Serves 4 to 6.
Molasses Cream: Beat whipping cream until stiff, gradually adding 2 tablespoons molasses.