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Vegan Lentil and Wild Rice Stuffed Acorn Squash

By PanPotPlates Test KitchenReviewed by PanPotPlates Editorial TeamPublished Apr 12, 2026 · Updated May 11, 2026
American-Inspired 90 mins veganglutenfreedairyfreeonepotfamily-friendlyhealthyseasonaleasybudget-friendlymealprepslowcookerfall recipeswinter recipes

This vegan stuffed acorn squash casserole combines gluten-free wild rice and nutrient-rich lentils with savory herbs and vegetables. Ideal as a healthy, budget-friendly, and easy-to-make family meal for fall and winter, it also offers a convenient slow cooker option for effortless meal prep.

Vegan Lentil and Wild Rice Stuffed Acorn Squash
Prep 20 min
Cook 70 min
Total 90 min
Servings 4
Difficulty easy
Cuisine American-Inspired

Recipe Details

Prep20 min
Cook70 min
Total90 min
Servings4
Difficultyeasy
CuisineAmerican-Inspired
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Ingredients

Servings 4
  • 2 medium acorn squashes (about 3 pounds total), halved and seeded
  • 1 cup dried green or brown lentils, rinsed and drained
  • 3/4 cup wild rice blend, rinsed
  • 1 medium yellow onion, finely chopped
  • 2 cloves garlic, minced
  • 1 medium carrot, finely diced
  • 1 celery stalk, finely diced
  • 1 3/4 cups low-sodium vegetable broth, divided
  • 1 tablespoon olive oil
  • 1/2 teaspoon dried thyme
  • 1/2 teaspoon dried sage
  • 1/4 teaspoon smoked paprika
  • 1/4 teaspoon ground black pepper
  • 1/2 teaspoon salt, divided
  • 1/4 cup chopped fresh parsley (optional, for garnish)
  • Red pepper flakes (optional, for a bit of heat)

Instructions

  1. Preheat the oven to 400°F (200°C). Place the acorn squash halves cut side down on a parchment-lined baking sheet. Roast for 30-35 minutes, or until tender when pierced with a fork.
  2. While the squash roasts, heat olive oil in a medium skillet over medium heat. Add the onion, carrot, and celery; sauté until softened, about 5-7 minutes.
  3. Add garlic, dried thyme, sage, smoked paprika, 1/4 teaspoon salt, and black pepper to the skillet. Cook for another minute until fragrant.
  4. In a large saucepan or deep skillet, combine rinsed lentils, wild rice, 1 1/2 cups vegetable broth, and the sautéed vegetable mixture. Bring to a boil, then reduce heat to low and simmer, covered, for 35-40 minutes or until lentils and rice are tender and liquid is absorbed. Add the remaining 1/4 cup broth if needed to prevent drying.
  5. Season the mixture with additional salt and pepper to taste.
  6. Scoop a generous amount of the lentil and wild rice filling into each roasted acorn squash half, packing lightly.
  7. Arrange the stuffed squash halves in a baking dish. Cover loosely with foil and bake at 350°F (175°C) for 15 minutes to meld flavors and heat through.
  8. Optional: Garnish with chopped fresh parsley and a pinch of red pepper flakes before serving.
  9. Slow Cooker Variation: After sautéing the vegetables, transfer all ingredients except the squash to a slow cooker. Cook on low for 4-5 hours, or until lentils and rice are tender. Roast the squash separately as directed and stuff just before serving.

Frequently Asked Questions

Reader questions and answers for this recipe will appear here.

To accommodate dietary preferences or ingredient availability, here are recommended substitutions for this vegan, gluten-free, and dairy-free stuffed squash recipe:

  • Acorn Squash: Swap with butternut or kabocha squash for similar sweetness and texture.
  • Lentils: Use red lentils for a softer, quicker-cooking filling, or canned lentils for convenience (reduce added broth accordingly).
  • Wild Rice Blend: Substitute with quinoa or brown rice, noting that cooking times and liquid ratios may vary.
  • Vegetable Broth: Mushroom broth, seasoned water, or homemade stock work well as alternatives.
  • Olive Oil: Replace with avocado oil, grapeseed oil, or other neutral oils for sautéing.
  • Dried Herbs (thyme, sage): Use fresh herbs at triple the dried amount or substitute with Italian seasoning.
  • Smoked Paprika: Use regular paprika for mild flavor or chipotle powder to add smoky heat.

These swaps keep the dish easy, wholesome, family-friendly, and suited for meal prep or slow cooker convenience.

Pan Or Pot Required

This Vegan Lentil and Wild Rice Stuffed Acorn Squash recipe falls under the Casseroles category with a focus on slow cooker and one-pot cooking methods. It requires cookware that facilitates easy preparation, minimal cleanup, and optimal flavor development.

Cookware Essentials:

  • Large Saucepan or Deep Skillet: Use a medium to large, covered saucepan or deep skillet to cook the lentils, wild rice, and sauté vegetables, ensuring even simmering and moisture retention.
  • Baking Sheet: Use a rimmed, parchment-lined baking sheet to roast the acorn squash halves evenly without sticking.
  • Baking Dish: A medium oven-safe baking dish is needed to bake the stuffed squash halves covered loosely with foil, allowing flavors to meld and heat to penetrate.
  • Optional Slow Cooker: For the slow cooker variation, use a 4 to 6-quart slow cooker to simmer lentils, rice, and vegetables after sautéing. Roast squash separately as directed.

These cookware choices support a smooth one-pot or slow cooker workflow, ideal for healthy, easy family meals with minimal fuss and cleanup.

Cookware Size Guidance

Optimal cookware size enhances cooking efficiency and recipe success for this Vegan Lentil and Wild Rice Stuffed Acorn Squash:

  • Medium to Large Saucepan or Deep Skillet (3 to 4 quarts): Provides enough space to combine lentils, wild rice, sautéed vegetables, and broth without overcrowding, ensuring even cooking.
  • Half-Sheet Pan or 9x13-inch Baking Dish: Perfect for roasting and baking four acorn squash halves in a single layer, promoting uniform texture and browning.
  • Slow Cooker (4 to 6 quarts): Ideal for hands-free, low-and-slow cooking of the filling ingredients, maintaining moisture and flavor.

Choosing cookware within these size ranges supports the recipe’s easy one-pot and casserole style, maximizing flavor and simplifying cleanup.

Cookware Swap Guidance

If your usual cookware is unavailable, here are suitable substitutions that preserve the integrity and convenience of this vegan casserole recipe:

  • Roasting Squash: Instead of a baking sheet, use any rimmed oven-safe dish like a roasting pan or casserole dish to catch juices and ensure even roasting.
  • Cooking Filling: Replace the saucepan with a heavy-bottomed deep skillet or a covered casserole pot that supports simmering and sautéing.
  • Slow Cooker: If preferring truly one-pot cooking, sauté vegetables in any skillet, then transfer the filling ingredients to a slow cooker. Roast the squash separately as per instructions.
  • Baking Stuffed Squash: Use an oven-safe casserole dish, cast iron skillet, or similar vessel snug enough to hold squash halves covered loosely with foil to keep moisture in.

These substitutions maintain the recipe’s appeal as an easy, family-friendly, vegan, gluten-free casserole ideal for slow cooker and one-pot meals.

Leftovers Quality

This vegan lentil and wild rice stuffed acorn squash maintains excellent quality for meal prep and leftovers, making it a versatile option for busy households. After cooking, allow portions to cool completely before transferring to airtight containers.

Store leftovers in the refrigerator and consume within 3-4 days to preserve flavor and texture. The hearty blend of grains, legumes, and roasted squash resists sogginess, retaining satisfying texture.

For long-term storage, freeze individual servings tightly wrapped or in sealed containers for up to 2 months. To reheat refrigerated portions, microwave them covered for 2-3 minutes or warm in a preheated 350°F (175°C) oven for 15-20 minutes. Frozen portions should be thawed overnight or reheated with extended time covered to prevent drying.

Limit reheating cycles to maintain the fresh flavors and wholesome texture of this easy vegan casserole, perfect for healthy, budget-friendly meal prep.

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