
Create a delicious low-carb alternative to traditional pasta with tender roasted spaghetti squash. This hearty dish features savory Italian sausage and melted cheese for a comforting meal that fits keto and gluten-free diets while still delivering rich, satisfying flavors.
The key to perfect spaghetti squash lies in proper roasting technique, which ensures ideal texture and tenderness.
Key Components
- Spaghetti Squash: Select a 2-3 pound squash
- Ground Italian Sausage: Use 85% lean meat
- Mozzarella: Fresh, low-moisture type
- Parmesan Cheese: Grate just before using
- Onion: Medium yellow, diced small
- Garlic Cloves: Fresh, finely minced
Preparation Method
- 1. Prepare the Squash:
- Split squash lengthwise, remove seeds. Brush cut sides with olive oil, season with salt and pepper. Place cut-side down on lined baking sheet. Roast at 400°F for 35-40 minutes until fork-tender.
- 2. Cook the Sausage:
- Brown sausage in large skillet over medium-high heat until cooked through. Remove with slotted spoon. Sauté diced onion in remaining fat until golden, 5-7 minutes. Add garlic, cook 30 seconds more.
- 3. Make the Sauce:
- Combine sausage, onions, and garlic in skillet. Add marinara and seasonings. Simmer 10-15 minutes until thickened.
- 4. Prepare Squash Strands:
- Once cooled slightly, scrape squash into strands with fork, leaving thin shell. Season strands.
- 5. Final Assembly:
- Combine squash with half the sauce mixture. Fill shells, top with remaining sauce. Add cheese layer. Broil 3-5 minutes until golden.

Storage Instructions
Allow dish to rest 5 minutes before serving. For advance preparation, cook squash and sauce up to 2 days ahead. Store components separately in refrigerator. Reheat assembled dish at 350°F for approximately 20 minutes.
Serving Suggestions
- Fresh garlic bread
- Classic Caesar salad
- Garlic green beans
- Parmesan roasted broccoli
- Garden salad
- Italian bread

Temperature Guidelines
Watch carefully during broiling as cheese can quickly over-brown. If top browns too rapidly, lower oven rack and switch to bake setting. Cover with foil when reheating leftovers to prevent cheese from burning.
This recipe demonstrates how healthy cooking can deliver satisfying comfort food flavors. The combination of proper technique and quality ingredients creates a memorable meal suitable for both everyday dinners and special occasions.

Recipe Notes
Mastering this dish comes with practice and attention to detail at each step. Proper squash preparation and careful layering are essential for achieving the best results consistently.
Frequently Asked Questions
- → What should I look for in a spaghetti squash?
- Pick one that feels solid, has a bright yellow color, and seems heavier than it looks.
- → Can I prepare parts of this dish in advance?
- Sure thing! You can make the filling and roast the squash ahead, then combine and bake when you're ready.
- → How can I store extras?
- Put them in a sealed container and refrigerate for up to three days. Reheat using the oven or microwave.
- → Is it okay to switch up the sausage?
- Absolutely, just use any ground sausage you like—mild or spicy both work great!
- → Does this freeze well?
- Definitely! Assemble everything, skip the final baking, and freeze for up to two months.