BAKED SHELLS WITH WINTER SQUASH

Baked Shells with Winter Squash image

Yield serves 6

Number Of Ingredients 9

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Butter for the baking dish
4 tablespoons olive oil
2 large onions, halved and thinly sliced
Coarse salt and fresh ground pepper
2 teaspoons chopped fresh rosemary leaves
1 pound small pasta shells
1 package (12 ounces) frozen winter squash purée, thawed
1 cup grated Parmesan cheese
3 slices crusty baguette, cut into 1/4-inch cubes (1 1/2 cups)

Steps:

Preheat the oven to 400°F. Butter a 9-by-13-inch baking dish. Heat 3 tablespoons of the oil in a large skillet over medium-low heat. Add the onions; season with salt and pepper. Cover; cook until the onions are soft and release their liquid, about 15 minutes. Uncover; raise the heat to medium. Cook, stirring, until the onions are browned, 20 to 25 minutes. Stir in 1 teaspoon of the rosemary.
Meanwhile, cook the pasta in a large pot of boiling salted water for 2 minutes less than the package instructions suggest. Drain, reserving 1 1/2 cups of the cooking water. Return the pasta to the pot.
Stir squash and reserved pasta water into the onions; simmer for 2 minutes. Toss the squash mixture and 1/2 cup of the Parmesan with the pasta. Transfer to the prepared dish.
Combine the bread cubes with the remaining Parmesan, rosemary, and oil; season with salt and pepper. Top the pasta with the bread cubes; bake until golden brown, 10 to 15 minutes.
Substituting Fresh Squash
Roast whole winter squash on a rimmed baking sheet, turning occasionally, until very tender when pierced with a knife, about 1 hour, depending on the size of the squash. When cool enough to handle, halve the squash lengthwise and scrape the flesh into a food processor (discard the skin and seeds). Purée until smooth. You will need 2 cups (from about 3/4 pound squash).