Polenta Lasagna with Creamy Mushroom Sauce
This recipe has its roots in polenta pasticciata, a traditional Italian dish of polenta layered with a béchamel sauce. It's a great way to use tubes of prepared polenta, available in most supermarkets. For a thicker lasagna, you can make it in an 8x8-inch dish; the cooking time will be the same.
1. Preheat oven to 375°F. Cook onion in large nonstick skillet coated with cooking spray over medium-high heat 3 minutes, stirring often. Add all mushrooms and garlic; cook, stirring often, 3 to 4 minutes, or until onion is tender. Add 3/4 cup milk, and bring to a simmer, stirring occasionally.
2. Mix cornstarch with remaining 2 Tbs. milk, and stir into mushroom mixture. Add cream cheese and wine, and cook, stirring often, 1 to 2 minutes, or until smooth and blended. Remove from heat. Add salt, pepper and nutmeg.
3. Coat 10x10-inch baking dish with cooking spray. Spread 3 Tbs. mushroom sauce in bottom of dish. Layer 1/3 of polenta slices over sauce. Sprinkle 1/4 cup Parmesan cheese over polenta. Top with half of remaining mushroom sauce. Layer with 1/3 of polenta slices and remaining sauce, and top with remaining polenta.
4. Bake, uncovered, 35 to 40 minutes, or until bubbly. Sprinkle lasagna with remaining 1/4 cup Parmesan. Broil 3 to 5 minutes, or until cheese is lightly browned. Remove from heat. Cover loosely with foil, and let stand 10 minutes before serving.