Stuffed Butternut Squash

Stuffed butternut squash makes a hearty plant-forward main dish that’s perfect for holidays or cozy dinners. The sweet roasted squash pairs beautifully with savory quinoa, mushrooms, toasted walnuts, and fresh herbs, finished with a bright Italian salsa verde that brings everything together.
Roasted butternut squash halves stuffed with a green herb filling

A Showstopping Vegetarian Main for the Holiday Table

If you’re looking for a vegetarian entree that feels just as celebratory as a roast turkey, Stuffed Butternut Squash is the answer. This dish features the naturally sweet, nutty flavor of roasted squash filled with a savory mixture of quinoa, earthy shiitake mushrooms, and toasted walnuts. Finished with a bright Italian Salsa Verde, it’s a high-protein, umami-packed meal that will have the meat-eaters at the table asking for a “side” of your main dish!

Why This Recipe Wins

  • The Ultimate Vegetarian Entree: Finally, a meat-free holiday option that is hearty, beautiful, and nutrient-dense.
  • Umami Bomb: Sautéed shiitake mushrooms and roasted walnuts provide a deep, savory flavor that perfectly balances the sweetness of the squash.
  • Eat the Skin: No tedious peeling required! Butternut squash skin becomes tender and completely edible once roasted.
  • Naturally Gluten-Free: Using quinoa as the base makes this an inclusive dish for guests with various dietary needs.

What You’ll Need

  • Butternut Squash: Look for medium-sized squash with a thick “neck” for even roasting.
  • Quinoa: A complete protein that provides a light, fluffy texture for the stuffing.
  • Shiitake Mushrooms: These offer a rich, meaty flavor that elevates the dish.
  • Walnuts & Fresh Thyme: For a classic Thanksgiving aroma and a necessary crunch.
  • Italian Salsa Verde: A zesty, herb-based sauce to brighten the finished dish.

How to Make It

  1. Prep the Squash: Cut the squash in half lengthwise and scoop out the seeds. Brush the flesh with olive oil and place them cut-side down on a parchment-lined baking sheet.
  2. The First Roast: Roast at 400°F for 45 minutes. You’ll know they are ready when the skin feels soft to the touch.
  3. The Stuffing: While the squash roasts, cook your quinoa and sauté the shiitake mushrooms with thyme. Toss in the roasted walnuts at the end.
  4. The Stuff: Flip the roasted squash over. If you want more room for filling, scoop out a little of the cooked flesh (and stir it into your quinoa!). Pack the mixture into the squash “boats.”
  5. The Final Roast: Return the stuffed squash to the oven for 10 minutes to let the flavors meld.
  6. The Garnish: Top with a generous drizzle of Italian Salsa Verde before serving.

Get the Kids Involved: The “Seed Scoopers”

Squash prep is a great way to introduce kids to different textures and the “insides” of their food.

  • Ages 3–5: Let them be the “Seed Scoopers.” Give them a sturdy metal spoon and let them scrape out the seeds and pulp. It’s a fun, gooey job!
  • Ages 6–9: Have them help “Brush the Boats.” They can use a pastry brush to paint the olive oil onto the cut sides of the squash.
  • Ages 10+: Let them lead the “Stuffing Assembly.” They can help fold the mushrooms, nuts, and herbs into the quinoa and carefully fill the roasted squash halves.

Tips for Success

  • Stabilize the Squash: When cutting, always slice off the top and bottom half-inch first. This gives you a flat, stable surface so the squash doesn’t roll while you’re trying to cut it in half.
  • Don’t Toss the Seeds: You can roast butternut squash seeds just like pumpkin seeds for a crunchy snack!
  • Mushroom Magic: Sauté the shiitakes until they are deeply browned. This caramelization is where all that savory “umami” flavor lives.
  • Make it Vegan: This recipe is naturally vegan! Just ensure your Salsa Verde is made with olive oil and fresh herbs (no cheese or anchovies).

Serve & Savor

This dish is a stunning centerpiece for Thanksgiving, but it’s easy enough for a cozy Sunday dinner. It pairs beautifully with Roasted Brussels Sprouts or a Winter Citrus Salad.

Print
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Roasted butternut squash halves stuffed with a green herb filling

Stuffed Butternut Squash

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Stuffed butternut squash makes a hearty plant-forward main dish that’s perfect for holidays or cozy dinners. The sweet roasted squash pairs beautifully with savory quinoa, mushrooms, toasted walnuts, and fresh herbs, finished with a bright Italian salsa verde that brings everything together.

  • Total Time: 1 hour 30 minutes
  • Yield: 4 servings

Ingredients

Scale

Stuffed Butternut Squash

  • 2 medium butternut squash, cut in half lengthwise with seeds removed

  • Olive oil, for brushing

  • 3/4 cup quinoa, rinsed

  • 1 1/2 cups vegetable broth or water

  • 1 cup shiitake mushrooms, sliced

  • 2 garlic cloves, chopped

  • 1/3 cup walnuts, chopped

  • 2 sprigs fresh thyme

Italian Salsa Verde (makes about 1 cup)

  • 1 tablespoon capers

  • 1/4 cup basil leaves

  • 1 cup parsley leaves and tender stems

  • 2 tablespoons chives, chopped

  • 1 garlic clove, peeled

  • 1/2 cup olive oil

  • 3 tablespoons lemon juice

  • 1/2 teaspoon kosher salt

Instructions

Roast the Squash

  1. Preheat the oven to 400°F (205°C).

  2. Place the squash halves cut side down on a parchment-lined baking sheet.

  3. Bake for 45 minutes, or until tender.

Cook the Quinoa

  1. In a medium pot, combine the quinoa and broth (or water).

  2. Bring to a boil, then reduce to a simmer.

  3. Cover and cook for 15 minutes, or until the liquid is absorbed and quinoa is tender.

Prepare the Filling

  1. Heat a thin layer of olive oil in a large sauté pan over medium-high heat.

  2. Cook the mushrooms for about 4 minutes.

  3. Add the garlic and sauté for 1 minute, until fragrant and mushrooms are golden.

Toast the Walnuts

  1. Spread the walnuts on a baking sheet.

  2. Toast in the oven for 10 minutes, or until lightly golden.

Combine the Filling

  1. In a bowl, combine the cooked quinoa, mushrooms, walnuts, and thyme leaves.

  2. Stir well to distribute the ingredients evenly.

Stuff the Squash

  1. Spoon the quinoa mixture into each roasted squash half.

  2. Lightly press the filling down so more mixture fits.

Final Bake

  1. Return the stuffed squash to the oven and bake for 10 minutes, until heated through.

  2. Remove from oven and drizzle with Italian salsa verde before serving.

Notes

Cutting the Squash Safely
Cut a small slice from the top and bottom of the squash first so it sits flat before slicing lengthwise.

No Need to Peel
Butternut squash skin becomes soft and edible after roasting, saving prep time.

Make Ahead
Prepare the quinoa filling and salsa verde a day in advance. Assemble and bake the squash when ready to serve.

Extra Filling Idea
Any leftover quinoa mixture works great in salads, grain bowls, or wraps the next day.

  • Author: Miks
  • Prep Time: 20 minutes
  • Cook Time: 1 hour 10 minutes
  • Category: Main Dish
  • Cuisine: American

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