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Vegan Portobello and Sage Stuffed Acorn Squash

Portobello and Sage Stuffed Acorn Squash

Vegan Portobello and Sage Stuffed Acorn Squash

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Main Courses
By Mama Veggie Serves: 6
Prep Time: 20 minutes Cooking Time: 60-75 minutes

This protein-packed vegan portobello and sage stuffed acorn squash recipe can serve as a hearty entree, or provide a healthy and tasty alternative to traditional holiday side dishes. Filling lentils, rich portobello mushrooms, sweet dates, and aromatic sage bring fabulous, yet diverse, flavor to every bite. As an added bonus, the walnuts make it more filling, so maybe you’ll be able to stop at just one piece of pumpkin pie this holiday season!


  • 3 acorn squash, cut in half and seeds removed
  • 3 T. extra virgin olive oil, divided
  • 3-4 cloves garlic, finely minced
  • 1½ lbs. portobello mushrooms, roughly chopped
  • ½ medium yellow onion, thinly sliced
  • 1 c. green lentils, cooked
  • 1 1/2 T. fresh sage, finely chopped
  • ¼ c. dry red wine
  • 1/3 c. dates, roughly chopped
  • ¼ c. walnuts, chopped
  • ¼ c. Vegan or vegetarian parmesan cheese, freshly grated
  • Sea salt and pepper to taste
  • Non-stick cooking spray



Position oven rack to center position, then preheat oven to 400°F. Spray a large baking dish with non-stick cooking spray and set aside.


Place the acorn squash halves cut side up in prepared baking dish and brush cut edges with one tablespoon olive oil. Season with salt and black pepper, to taste. Place baking dish on center rack in pre-heated oven and roast for 40 minutes, or until the squash is fork tender.


In the meantime, heat the remaining olive oil in a large skillet over medium heat. Add minced garlic, stirring occasionally, until slightly browned, approximately 2-3 minutes.


Add chopped mushrooms and cook, stirring occasionally, until they start to brown, approximately 4-5 minutes. Add sliced onions and continue cooking, stirring once or twice, for another 3-4 minutes.


Stir green lentils, fresh sage, and red wine into the skillet. Cook, stirring occasionally, until mixture thickens, approximately 8-10 minutes. Remove from heat and stir in the chopped dates and toasted walnuts. Season with salt and black pepper, to taste. Set aside.


When ready, remove cooked squash from oven and cool slightly before filling each half with the Portobello mushroom mixture. Sprinkle each half with some freshly grated vegan or vegetarian parmesan cheese.


Return stuffed squash to oven for another 5-10 minutes, or until heated through and the cheese starts to melt. Remove from oven and serve immediately. Enjoy!


Acorn squash seeds can be seasoned and toasted, just like pumpkin seeds. Reserve the seeds while preparing this recipe to enjoy as a healthy snack later.

Vegan Portobello and Sage Stuffed Acorn Squash
Vegan Portobello and Sage Stuffed Acorn Squash

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