Cheesey Chicken/mushroom Lasagna – Nana's Recipes

Ingredients

• 1 (10-ounce) package cremini or white mushrooms, thinly sliced
• 3 garlic cloves, minced
• 1 tablespoon olive oil
• 5 tablespoons unsalted butter, divided
• 1/2 cup dry white wine
• 1/2 roast chicken, skin discarded, meat shredded (about 2 1/4 cups), and carcass reserved for stock
• 3 1/2 cups whole milk
• 1/4 cup all-purpose flour
• 2 teaspoons thyme leaves
• 3/4 cup grated Parmigiano-Reggiano
• 12 Barilla no-boil egg lasagne noodles (less than a 9-ounce package)
• 1 1/2 cups coarsely grated Gruyère (3 ounces)