1 (15-ounce) can pure pumpkin purée (not pumpkin pie filling)
1 bunch kale, stems removed and leaves roughly chopped
Freshly shaved Parmesan cheese, for serving
Directions
In a large, straight-sided skillet or Dutch oven, heat the olive oil over medium-high heat. Add the onion and sauté until soft and translucent, 3 to 4 minutes. Add the garlic and crushed red pepper and sauté 1 minute.
Add the pasta, chicken or vegetable stock, and pumpkin purée, season to taste with salt and pepper, and stir to combine. Raise the heat to high and bring to a boil. Continue boiling, stirring every 30 seconds or so and adjusting the heat as needed, for 7 minutes.
Add the kale, reduce the heat to medium-high, and simmer, stirring frequently, until the pasta is al dente and the sauce is thick, 3 to 5 minutes. Season to taste with salt, pepper, and crushed red pepper.
Divide the pasta among bowls, sprinkle with the Parmesan, and serve.