Ingredients
Method
Preparation
- Preheat your oven to 375ºF.
- Bring a large pot of generously salted water to a boil.
- Add your pasta and cook until just 2 minutes shy of al dente. Drain and set aside.
Sautéing
- Melt the butter in a large sauté pan over medium heat.
- Add chopped walnuts and fresh sage, cooking for about 5 minutes until toasted and fragrant.
- Season with a pinch of salt and transfer the mixture to a bowl.
Cooking Vegetables
- In the same pan, add olive oil followed by sliced mushrooms and onion.
- Sauté for 7 to 8 minutes until soft and fragrant.
Building the Sauce
- Stir in tomato paste, garlic, and crushed red pepper flakes, cooking for 2 to 3 minutes.
- Add baby spinach and stir until wilted.
- Season with oregano, kosher salt, black pepper, and ground nutmeg.
Combining Ingredients
- Pour in vegetable broth, scraping up any browned bits.
- Stir in pumpkin purée, Parmesan, and 1/2 cup fontina until melted.
- Add the drained pasta and mix until well-coated.
Baking
- Transfer pasta mixture to greased 13x9-inch baking dish.
- Top with remaining fontina and walnut-sage mixture.
- Cover loosely with foil and bake for 15 minutes.
- Remove foil and bake for an additional 10 to 15 minutes until the top is golden brown.
Notes
For added flavor, incorporate cooked sausage or other vegetables. Experiment with different cheeses. Store leftovers in an airtight container for up to 3 days, or freeze for up to 2 months.
