Name: Pumpkin Tomato Pasta Bake with Walnuts and Sage Recipe
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 1 lb. dry pasta of choice (mezzi rigatoni, shells, ziti, fusilli, or farfalle); 1/2 cup grated Parmesan cheese; 1 1/2 cups grated fontina cheese, divided; 2 Tbsp. butter; 1/2 cup finely chopped walnuts; 1 Tbsp. finely chopped fresh sage leaves, divided; 2 Tbsp. extra-virgin olive oil; 8 oz. cremini (baby bella) mushrooms, sliced; 1 yellow onion, finely chopped; 1/4 cup tomato paste; 4 garlic cloves, minced; 1/2 tsp. crushed red pepper flakes; 3 to 4 handfuls fresh baby spinach; 1 tsp. dried oregano; 1 tsp. kosher salt; 1/2 tsp. black pepper; 1/4 tsp. ground nutmeg; 3 cups vegetable broth; 1 (15-oz.) can pumpkin purée; 2 tsp. finely chopped fresh sage leaves (remaining from the 1 Tbsp. divided)

Jump to Recipe· 4.4 from 58 reviews

If you’ve ever wanted a cozy, comforting dish that brings a brilliant twist on classic pasta, this Pumpkin Tomato Pasta Bake with Walnuts and Sage Recipe is exactly what you need on your dinner table. It’s a vibrant, creamy, and deeply flavorful bake that combines the sweetness of pumpkin with the rich tang of tomato, all elevated by the crunch of toasted walnuts and the earthiness of fresh sage. This is one of those dishes that feels like a warm hug in a casserole, perfect for family meals or impressing guests with something a little unexpected yet incredibly satisfying.

Ingredients You’ll Need

The image shows several white and light brown bowls arranged on a white marbled surface, each filled with different ingredients. In the center, there is a white bowl filled with fresh green spinach leaves. Below it, a white bowl holds pale yellow pasta tubes. To the right of the spinach, a light brown bowl is filled with sliced brown mushrooms that have white undersides. Above the mushrooms, another light brown bowl contains finely chopped white onions. At the top left, a small white bowl holds chopped green herbs. Next to it, a tiny light brown bowl has creamy white minced garlic. Below these, a small dark brown bowl is filled with red tomato paste, and in the middle, another brown bowl contains shelled walnuts. At the bottom right, a small black bowl has shredded white cheese. A partially open can of orange pumpkin puree lies near the bottom left corner. Photo taken with an iphone --ar 4:5 --v 7

Don’t let the ingredient list intimidate you—each component in this dish is straightforward, easy to find, and plays a crucial role in building layers of flavor, texture, and color that make this pasta bake so special.

1 lb. dry pasta of choice: Pick mezzi rigatoni, shells, or any tubular pasta that holds sauce wonderfully for maximum flavor with every bite.
2 Tbsp. butter: Adds richness and helps toast the walnuts to golden perfection.
1/2 cup finely chopped walnuts: Brings a delightful crunch and deep nuttiness that complements the creamy sauce.
1 Tbsp. plus 2 tsp. finely chopped fresh sage leaves, divided: Infuses the dish with a fragrant, earthy note that ties every ingredient together.
2 Tbsp. extra-virgin olive oil: A fruity, smooth base for sautéing mushrooms and onions.
8 oz. cremini (baby bella) mushrooms, sliced: Adds meaty texture and umami depth.
1 yellow onion, finely chopped: Provides sweetness and complexity when caramelized.
1/4 cup tomato paste: Intensifies the tomato flavor and enriches the sauce’s color.
4 garlic cloves, minced: Aromatic punch with a hint of warmth.
1/2 tsp. crushed red pepper flakes: Just enough heat to balance the sweetness without overpowering.
3 to 4 handfuls fresh baby spinach: Bright color and tender greens folded into the sauce.
1 tsp. dried oregano: Classic herbaceous flavor to complement the tomato and pumpkin.
1 tsp. kosher salt: Enhances all the flavors.
1/2 tsp. black pepper: Gentle warmth and earthiness.
1/4 tsp. ground nutmeg: A subtle hint of spice that works magic with pumpkin dishes.
3 cups vegetable broth: The liquid base that ties the creamy pumpkin and tomato sauce together.
1 (15-oz.) can pumpkin purée: The star ingredient providing natural sweetness and creamy texture.
1/2 cup grated Parmesan cheese: Adds salty, nutty notes for depth.
1 1/2 cups grated fontina cheese, divided: Melts smoothly for a luscious, cheesy finish.

How to Make Pumpkin Tomato Pasta Bake with Walnuts and Sage Recipe

Step 1: Prepare the Pasta

Start by preheating your oven to 375ºF. Meanwhile, bring a large pot of generously salted water to a boil. Add your chosen pasta and cook it until it is just shy of al dente—firm but tender enough to bite through. Drain the pasta well; this is important because the pasta will continue cooking in the oven, soaking up all those glorious flavors later on.

Step 2: Toast the Walnuts with Sage

Melt butter in a large sauté pan over medium heat. When melted, add the finely chopped walnuts and 1 tablespoon of fresh sage. Toast them for about 5 minutes until they’re golden and beautifully aromatic. Season this mixture lightly with salt, then transfer it to a bowl to keep warm. This step gives a fantastic crunchy texture and an earthy aroma that will top your pasta bake later.

Step 3: Sauté the Mushrooms and Onions

In the same pan, heat the extra-virgin olive oil over medium heat. Add sliced cremini mushrooms and finely chopped yellow onion. Sauté for about 8 minutes until softened and fragrant. This builds the savory base of your sauce, essential for that satisfying umami flavor.

Step 4: Build the Sauce

Stir in the tomato paste, minced garlic, and crushed red pepper flakes. Let it cook for 3 to 4 minutes until the tomato paste caramelizes lightly and deepens in color to a rich brick red. Gradually add your fresh baby spinach, stirring continuously until it wilts down and integrates. Next, mix in dried oregano, salt, black pepper, ground nutmeg, and the remaining 2 teaspoons of fresh sage for that herbal lift.

Step 5: Make it Creamy and Combine

Pour in the vegetable broth and stir well to scrape up any browned bits clinging to the pan’s bottom—this adds fantastic flavor. Stir in the pumpkin purée, grated Parmesan cheese, and 1/2 cup of fontina cheese. Keep stirring until the fontina melts completely and you have a silky smooth sauce. Finally, add the cooked pasta and toss everything together until the noodles are generously coated in this luscious sauce.

Step 6: Bake to Perfection

Transfer the pasta mixture to a 13×9-inch greased baking dish. Sprinkle the remaining fontina cheese evenly on top, followed by the toasted walnut and sage mixture you set aside earlier. Cover the dish with foil and bake for 15 minutes at 375ºF. Remove the foil and bake for an additional 10 minutes, allowing the cheese topping to melt fully and turn beautifully golden and bubbly.

How to Serve Pumpkin Tomato Pasta Bake with Walnuts and Sage Recipe

The image shows a rectangular black baking dish filled with short tube-shaped pasta mixed with a red-orange sauce, wilted green spinach leaves, and sliced brown mushrooms. In the second photo, the same pasta mixture is topped with a layer of shredded white cheese and chopped light brown walnuts spread evenly across the top. The background is a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

To elevate this dish visually and flavor-wise, sprinkle a bit of fresh sage leaves or finely chopped parsley just before serving. A light drizzle of good-quality extra virgin olive oil can also add a glossy, inviting finish that looks as good as it tastes.

Side Dishes

This hearty bake pairs wonderfully with crisp, refreshing salads—think arugula with lemon vinaigrette or a simple fennel and orange salad. If you want to add more texture, roasted seasonal vegetables or crusty garlic bread work beautifully alongside to round out the meal.

Creative Ways to Present

Serve this pasta bake family-style straight from the dish for a cozy, communal feel. Alternatively, plate individual portions topped with a few walnut halves and a sage leaf for a more elegant presentation. You can even turn leftovers into cute pasta bake cups by reheating smaller servings in muffin tins for a fun twist.

Make Ahead and Storage

Storing Leftovers

Store any leftover Pumpkin Tomato Pasta Bake with Walnuts and Sage Recipe in an airtight container in the refrigerator. It will keep well for up to 3 days, allowing the flavors to mellow and develop even further.

Freezing

This pasta bake freezes wonderfully. Make it completely, then cover tightly with foil and freeze for up to 2 months. To enjoy, thaw overnight in the fridge before reheating. This makes a perfect meal for busy nights when you crave comfort food without the fuss.

Reheating

Reheat leftovers gently in a covered dish in the oven at 350ºF until heated through, about 20-25 minutes. Alternatively, microwave individual servings, stirring halfway, to warm evenly. Adding a sprinkle of extra cheese before reheating can revive that fresh baked feel.

FAQs

Can I use different types of pumpkin for this recipe?

Absolutely! You can use canned pumpkin purée as noted, but if you want to use fresh pumpkin, roast and purée it before adding to the sauce. Just be sure to use a smooth purée for the best creamy texture.

Is this recipe suitable for vegetarians?

Yes, this pumpkin tomato pasta bake is vegetarian-friendly. Just double-check your broth is vegetable-based to keep it fully vegetarian. It’s a hearty and satisfying meatless meal option.

Can I substitute the walnut topping?

For sure! If you’d prefer a different nut, toasted pecans or hazelnuts can work well and bring their own unique flavors. If you have a nut allergy, try crispy breadcrumbs mixed with herbs instead for crunch.

What pasta shapes work best?

Choosing tubular pastas like mezzi rigatoni, shells, ziti, fusilli, or farfalle is ideal since they hold the sauce well. But feel free to use your favorite shape—you really can’t go wrong here.

How spicy is the dish?

It has just a gentle kick from the crushed red pepper flakes, balancing the sweetness of pumpkin and richness of the cheese. You can adjust the heat level by adding more or less to suit your taste.

Final Thoughts

This Pumpkin Tomato Pasta Bake with Walnuts and Sage Recipe is one of those gems that proves cooking at home can be both comforting and creative. It’s a wonderful way to celebrate seasonal ingredients with layers of flavor and texture that will have everyone asking for seconds. I hope you’ll give this recipe a try soon and enjoy every hearty, cheesy, and fragrant bite as much as I do.