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" Preheat oven to 400. Bring a large pot of salted water to a boil (for pasta). In a large saucepan, melt 2 tablespoons butter over high heat. Add mushrooms, and season with salt and pepper. Cook, tossing frequently, until tender and browned, 8 to 10 minutes. Transfer to a bowl, and set aside. Make sauce: In same saucepan, melt remaining 4 tablespoons butter over medium heat. Add flour; cook, whisking, about 1 minute. Whisking constantly, gradually add milk, broth, and wine. Bring to a boil; reduce to a simmer, and add 2 cups Parmesan and thyme. Season with salt and pepper. Cook pasta 2 minutes less than package instructions for al dente; drain and return to pot. Add sauce, chicken, peas, and mushrooms. Toss well to combine. Divide between two shallow 2-quart baking dishes; sprinkle with remaining Parmesan. Freeze (see below) or bake until browned, about 30 minutes. Let stand 10 minutes before serving. To freeze: After placing pasta mixture in baking dishes and sprinkling with Parmesan (step 3), cool to room temperature. Cover tightly with aluminum foil, and freeze up to 3 months. To bake from frozen: Bake, covered with foil, at 400 degrees, until center is warm, about 2 hours. Uncover, and bake until top is browned, about 20 minutes more. Serve. To bake from thawed: Thaw overnight in refrigerator. Bake, covered with foil, at 400 degrees, until center is warm, about 30 minutes. Uncover, and bake until top is browned, about 20 minutes."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.delish.com/cooking/recipe-ideas/recipes/a6868/chicken-tetrazzini-recipe/?src=shelter_footer>