CHICKEN AND MUSHROOM BAKED SHELLS

Steps:

• Preheat oven to 450 degrees F. Bring a large pot of salted water to a boil.
• Heat 2 tablespoons of the oil in a medium saucepan over medium heat. Add the garlic and red pepper flakes and cook, stirring, until the garlic is golden, about 2 minutes. Add both cans of the tomatoes and 1 cup of water. Increase the heat to medium-high and bring to a simmer. Reduce the heat slightly and simmer rapidly, uncovered, until thickened, 15 to 20 minutes. Stir in the ricotta and season with salt and pepper.
• While the sauce simmers, heat the remaining 2 tablespoons oil in a large skillet over medium high heat. Add the mushrooms and 1/4 teaspoon salt and cook, stirring occasionally, until golden brown, 6 to 8 minutes. Transfer the mushrooms to a large bowl.
• Cook the shells in the salted boiling water until very al dente, about 2 minutes less than the package directions. Drain the pasta and add it to the mixing bowl along with the mushrooms.
• Add the tomato sauce, rotisserie chicken, the mozzarella and half of the parmesan to the bowl and stir well to combine. Transfer the pasta to a 3- to 4-quart baking dish and top with the fontina cheese and the remaining Parmesan. Bake, uncovered, until browned, about 15 minutes. Let the pasta rest for about 10 minutes before serving.