Jump to Recipe Print RecipeAs I stood in my kitchen, the sweet aroma of roasted squash began to fill the air, instantly transporting me to a cozy autumn evening. If you’re looking to transform dinner into a delightful experience, my Easy Stuffed Spaghetti Squash with Vegetarian Sausage is here to save the day. This versatile dish not only showcases the playful texture of spaghetti squash, but it also offers the freedom to customize with your favorite fillings—making it an enjoyable weeknight meal for everyone. With its quick prep time and nourishing ingredients, preparing this vibrant dish is a breeze, inviting even the busiest home chefs to step away from the drive-thru. Curious about how to perfectly stuff your spaghetti squash for a comforting, satisfying dinner? Let’s dive in! Why is Stuffed Spaghetti Squash a Must-Try? Nutritious and Flavorful: Each serving is packed with veggies and vegetarian sausage, making it a healthy choice for weeknight dinners. Endless Customization: Personalize your dish by swapping in seasonal vegetables or different types of protein for variety! Quick Preparation: This recipe comes together in less than an hour, perfect for busy evenings. Guilt-Free Comfort Food: Enjoy all the familiar comforting flavors without the heaviness of traditional pasta. Explore more delicious vegetarian options with our vegetarian recipes that also prioritize flavor and ease! Stuffed Spaghetti Squash Ingredients Get ready to enjoy a delicious, healthy dinner! For the Squash Spaghetti Squash – This is the star ingredient that mimics pasta’s texture beautifully. Olive Oil – Adds richness and a crisp texture while roasting. For the Filling Vegetarian Italian Sausage – Provides satisfying protein and savory flavor; try crumbled tempeh for a different texture. Red Bell Pepper – Adds sweetness and vibrant color; feel free to swap with any seasonal vegetable. Yellow Onion – Enhances flavor depth; shallots or green onions can work just as well. Garlic – Infuses the filling with aromatic richness; garlic powder is a great substitute if needed. For the Sauce Balsamic Vinegar – Introduces delightful tanginess; red wine vinegar makes a good substitute. Marinara Sauce – Coats the filling for moisture and flavor; any pasta sauce you love will work too. For Topping Mozzarella Cheese – Melts beautifully, adding creaminess; vegan cheese or nutritional yeast is perfect for a dairy-free twist. For Garnish Parsley – Adds a fresh finish; feel free to use basil or cilantro for a unique touch. Embrace the enticing flavors and textures of stuffed spaghetti squash in this customizable dish that’s perfect for any weeknight! Step‑by‑Step Instructions for Stuffed Spaghetti Squash Step 1: Prepare Spaghetti Squash Preheat your oven to 400°F (200°C). Carefully slice the spaghetti squash in half lengthwise using a sharp knife, and scoop out the seeds with a spoon. Drizzle the insides with olive oil, then season with salt and pepper for enhanced flavor. Take a moment to admire the beautiful golden flesh of the squash as it’s prepped for roasting! Step 2: Roast Squash Place the squash halves cut-side up on a baking sheet lined with parchment paper. Slide them into the preheated oven and roast for 35–40 minutes, or until the flesh is tender and easily shreds with a fork. You’re looking for a golden color that signals the squash is ready to embrace the flavorful filling ahead. Step 3: Cook Filling While the squash roasts, heat a tablespoon of olive oil in a skillet over medium heat. Add the vegetarian sausage, diced red bell pepper, and chopped yellow onion. Cook for 6–8 minutes, stirring occasionally, until the vegetables soften and caramelize, filling your kitchen with a savory aroma. Then, stir in minced garlic and cook for an additional 1–2 minutes until fragrant. Step 4: Combine Filling Deglaze the skillet by adding balsamic vinegar, scraping any delicious bits from the bottom. Stir in marinara sauce and let the mixture simmer gently, allowing the flavors to meld together for about 5 minutes. Once the squash is roasted, mix the shredded squash flesh into the filling, ensuring everything is well-coated and harmonizing. Step 5: Stuff Squash Remove the roasted squash from the oven and spoon the savory filling into each half, generously packing it in. Don’t be shy! Top each stuffed spaghetti squash half with a layer of mozzarella cheese, allowing it to blanket the filling and melt beautifully. Step 6: Melt Cheese Lower the oven temperature to 350°F (175°C) and return the stuffed squash to the oven. Bake for an additional 5–10 minutes, or until the cheese is bubbly and lightly golden. If you prefer a crispier finish, broil for an extra minute but keep a close eye on it to prevent burning. Step 7: Garnish and Serve Once out of the oven, let the stuffed spaghetti squash cool for a few minutes. Garnish with freshly chopped parsley for a pop of color and freshness. Serve this warm, comforting dish straight from the oven, inviting everyone to enjoy the delicious flavors you’ve crafted! How to Store and Freeze Stuffed Spaghetti Squash Fridge: Store leftover stuffed spaghetti squash in an airtight container for up to 3 days to maintain freshness and flavor. Freezer: For longer storage, freeze the unstuffed, cooked squash halves or filled and baked squash wrapped in plastic wrap and aluminum foil for up to 3 months. Reheating: Thaw in the refrigerator overnight; reheat in the oven at 350°F (175°C) for about 20 minutes or until heated through, ensuring the filling stays delicious and intact. Serving Suggestions: Consider serving with a fresh salad or crusty bread for a hearty meal any time! Stuffed Spaghetti Squash Variations Get ready to unleash your culinary creativity with these delightful twists! Protein Swap: Try crumbled tempeh or black beans instead of vegetarian sausage for a hearty plant-based option. The variations in texture will give your dish a unique personality. Veggie Medley: Substitute diced zucchini, spinach, or chopped kale for the bell pepper, exploring seasonal flavors. Each veggie brings something special to the table, creating a filling that’s bursting with color and nutrients. Spicy Kick: Add a pinch of red pepper flakes or diced jalapeños to the filling for an extra layer of warmth. This twist will heat things up and add a delightful zing to your meal. Grain Boost: Mix in some cooked quinoa or farro to the filling for added texture and heartiness. These grains not only enhance the nutritional profile but also make it a more filling dish. Herb Infusion: Fresh herbs like basil, oregano, or thyme can brighten the flavor profile. Toss them into your filling for an aromatic experience that dances on the palate. Saucy Alternatives: Switch up the marinara with pesto or Alfredo sauce for a creamy surprise. This delightful change can transform your stuffed squash into a distinctive, indulgent dinner. Nutty Crunch: Top it off with toasted pine nuts or walnuts for a delightful crunch. This simple addition adds depth and a beautiful nutty flavor that complements the dish beautifully. Let your taste buds guide you as you make these swaps, and feel free to explore more vibrant vegetarian inspirations with our vegetarian recipes! Make Ahead Options These Stuffed Spaghetti Squash are perfect for busy weeknights! You can roast the squash up to 24 hours in advance; simply allow it to cool, then store the halves in an airtight container in the refrigerator. For the filling, sauté your vegetables and vegetarian sausage in advance and refrigerate for up to 3 days. To maintain the squash’s texture, avoid adding the marina sauce and cheese until you are ready to bake the dish. When you’re ready to enjoy your meal, fill the squash with the prepped filling, top with cheese, and bake at 350°F (175°C) for about 10-15 minutes until heated through. This way, your Stuffed Spaghetti Squash will be just as delicious with minimal effort! What to Serve with Stuffed Spaghetti Squash Every bite of this hearty dish invites the flavors of melted cheese and savory filling, so let’s explore some perfect companions to make your meal complete. Garlic Bread: The crunchy exterior and fluffy inside complement the hearty filling, offering a delightful texture contrast with each bite. Perfect for soaking up any extra marinara sauce! Side Salad: A refreshing mix of greens, cherry tomatoes, and a light vinaigrette brightens the meal, enhancing the savory flavors of the stuffed squash. Choose seasonal vegetables for an extra pop of freshness. Roasted Vegetables: A medley of seasonal veggies like carrots and Brussels sprouts provides a sweet, caramelized bite and balances the dish’s richness. Their earthy notes harmonize beautifully with the filling. Creamy Polenta: This luscious base offers a creamy texture that echoes the comforting feel of the stuffed spaghetti squash while enhancing the overall flavor of the meal. Wine Pairing: A crisp white wine, like Sauvignon Blanc, elevates your dining experience, cutting through the richness and highlighting the dish’s savory notes. Dessert Option: A slice of light lemon sorbet refreshes the palate after the main course, creating a perfect ending to your cozy dinner. The citrus provides a lovely contrast to the savory ingredients of your meal. Expert Tips for Stuffed Spaghetti Squash Sharp Knife Use: Always use a sharp knife when slicing the spaghetti squash to ensure safety and make the process easier. Watch Cooking Time: To prevent overcooking, keep an eye on the squash while roasting; you want it tender but still holding its shape for stuffing. Salt Sparingly: Be cautious with salt; too much can cause the squash to release excess water, making it soggy instead of the perfect base for your stuffed spaghetti squash. Flavorful Filling: Don’t hesitate to experiment with different herbs and spices in the filling; fresh basil or oregano can elevate the dish incredibly. Leftover Magic: If you have any filling left over, use it in a wrap or on top of a salad for a delicious lunch option the next day! Herb Garnish: Adding fresh herbs like parsley or basil at the end unlocks fresh flavors, enhancing your stuffed spaghetti squash right before serving! Stuffed Spaghetti Squash Recipe FAQs How do I know when my spaghetti squash is ripe? Look for a spaghetti squash that feels firm and has a matte skin without dark spots all over. A ripe squash typically has a yellow or golden hue. If it feels too soft or has any blemishes, it may be overripe. What’s the best way to store leftover stuffed spaghetti squash? Store any leftover stuffed spaghetti squash in an airtight container in the refrigerator for up to 3 days. When you’re ready to enjoy it again, consider reheating it in the oven at 350°F (175°C) for about 20 minutes to warm it through and maintain that delightful texture. Can I freeze stuffed spaghetti squash? How? Absolutely! You can freeze either the unstuffed, cooked squash halves or the entire stuffed squash. Wrap the cooked halves or stuffed squash tightly in plastic wrap and then in aluminum foil to protect against freezer burn. It can be stored in the freezer for up to 3 months. When you’re ready to eat, thaw it in the refrigerator overnight before reheating. What should I do if my filling is too watery? If you find your filling is too watery, consider cooking the vegetables a bit longer to help evaporate excess liquid before combining with the squash. You can also add a bit of breadcrumbs or another thickening agent to absorb excess moisture. It’s all about achieving that perfect balance for your stuffed spaghetti squash! Is this recipe suitable for someone with dairy allergies? Yes, indeed! To make this stuffed spaghetti squash dairy-free, simply substitute the mozzarella cheese with a vegan cheese alternative or use nutritional yeast for a cheesy flavor without the dairy. Always double-check your sauce and other ingredients to ensure they’re dairy-free as well. Savory Stuffed Spaghetti Squash for a Cozy Weeknight Meal Discover a flavorful and nutritious Stuffed Spaghetti Squash that transforms dinner into a cozy experience. Print Recipe Pin Recipe Prep Time 20 minutes minsCook Time 40 minutes minsTotal Time 1 hour hr Servings: 4 halvesCourse: DinnerCuisine: VegetarianCalories: 350 Ingredients Equipment Method Nutrition Notes Ingredients 1x2x3x? For the Squash1 whole Spaghetti Squash The star ingredient2 tbsp Olive Oil For drizzlingFor the Filling1 lb Vegetarian Italian Sausage Or crumbled tempeh1 cup Red Bell Pepper Diced, can swap with seasonal veggies1 medium Yellow Onion Chopped, can use shallots or green onions2 cloves Garlic Minced, or use garlic powderFor the Sauce2 tbsp Balsamic Vinegar Or red wine vinegar as a substitute1 cup Marinara Sauce Any pasta sauce you loveFor Topping1 cup Mozzarella Cheese Or vegan cheese/nutritional yeastFor Garnish2 tbsp Parsley Chopped, can use basil or cilantro Equipment OvenSkilletbaking sheetKnifespoon Method Preparation StepsPreheat your oven to 400°F (200°C). Slice the spaghetti squash in half lengthwise and scoop out the seeds. Drizzle insides with olive oil and season with salt and pepper.Place squash cut-side up on a baking sheet and roast for 35–40 minutes until tender.In a skillet, heat olive oil over medium heat. Add vegetarian sausage, red bell pepper, and onion; cook for 6–8 minutes. Stir in garlic and cook for another 1–2 minutes.Add balsamic vinegar to deglaze the skillet, then stir in marinara sauce and simmer for about 5 minutes. Mix in shredded squash flesh after roasting.Stuff squash halves with the filling and top with mozzarella cheese.Lower oven temperature to 350°F (175°C) and bake for an additional 5–10 minutes until cheese is bubbly. Broil for an extra minute if desired.Garnish with parsley before serving. Nutrition Serving: 1halfCalories: 350kcalCarbohydrates: 30gProtein: 15gFat: 20gSaturated Fat: 5gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 10gCholesterol: 20mgSodium: 600mgPotassium: 600mgFiber: 6gSugar: 5gVitamin A: 500IUVitamin C: 60mgCalcium: 300mgIron: 2mg NotesFeel free to customize with seasonal ingredients and herbs to make it your own. Tried this recipe?Let us know how it was!