
Turn boring spaghetti squash into a mouthwatering low-carb dinner that gives you all the pasta feels without any guilt afterward. This keto option mixes soft squash strands with flavorful Italian sausage and gooey cheese, making a meal that works for your health goals while still hitting those comfort food spots.
I've tried cooking spaghetti squash dozens of ways, and I now know that getting the roasting just right makes it truly feel like actual pasta.
Key Ingredients
- Spaghetti Squash: Pick one around 2-3 pounds for enough to serve
- Italian Sausage: Go with 85/15 for the tastiest results
- Fresh Mozzarella: Grab the low moisture type
- Parmesan: Grate it yourself for best taste
- Yellow Onion: Cut into tiny pieces
- Fresh Garlic: Chop it right before you cook
Step-By-Step Cooking Guide
- 1. Getting The Squash Ready:
- Grab a good knife and split a 2-3 pound spaghetti squash down the middle. Dig out the seeds and stringy bits first. Drizzle some olive oil on the cut parts, then sprinkle salt and pepper. Put them face down on a baking sheet with parchment paper. Cook at 400°F for about 35-40 minutes until you can easily poke it with a fork.
- 2. Cooking The Meat:
- While the squash cooks, grab a big pan and brown 1 pound of Italian sausage over medium-high heat, breaking it into little bits as it cooks. Once it's done, move it to a plate lined with paper towels. Keep the fat in the pan and toss in diced onion, cooking until they're soft and getting golden around the edges (about 5-7 minutes). Throw in minced garlic and stir for just 30 seconds until you can smell it.
- 3. Making The Sauce:
- Put the sausage back in with the onions and garlic. Pour in marinara sauce and Italian spices. Let it bubble gently for 10-15 minutes until it's thick enough to stick to the back of a spoon. Taste it and add more spices if needed.
- 4. Handling The Squash:
- When squash is ready, let it cool a bit. Use a fork to scratch the inside into spaghetti-looking strands, but leave about ½-inch around the edge so the shell stays strong. Add some salt and pepper to the strands.
- 5. Putting It All Together:
- Mix the squash strands with half the meat sauce. Put this mixture back into the squash shells, then top with the rest of the sauce. Layer torn mozzarella and grated Parmesan on top. Broil for 3-5 minutes until the cheese melts and gets some brown spots.

Keeping And Serving Tips
Wait 5 minutes after taking it out before you dig in - this helps everything set up nicely. If you want to make it ahead, you can roast the squash and cook the filling up to 2 days early. Just keep them separate in sealed containers in your fridge. When you're ready to eat, put everything together and warm it in a 350°F oven for about 20 minutes.
Foods That Go Well With It
- Some garlic bread for folks who aren't watching carbs
- A simple Caesar salad with homemade dressing
- Green beans cooked with garlic
- Broccoli roasted with parmesan sprinkled on top
- A basic green salad
- A chunk of Italian bread

Getting The Heat Just Right
Keep an eye on things during that final broiling step - cheese can burn in seconds. If the top gets too brown while the middle's still cold, just move the rack down and switch from broil to bake. When warming up leftovers, cover with foil until the last few minutes so your cheese doesn't burn.
This dish shows you can eat healthy without giving up amazing flavors. It works great for family dinners or meal prep for busy weeks, giving you Italian taste without all the carbs. Just remember, taking your time with each step makes all the difference in how the final dish turns out.

Closing Thoughts
Every time you make this, you'll get better at putting your own spin on it. Success comes down to preparing the squash right and assembling everything carefully. After making this countless times, I've learned that not rushing through the steps really pays off in the end.
Frequently Asked Questions
- → How do I pick a good spaghetti squash?
- Look for one that's solid, bright yellow, and seems heavy when you lift it.
- → Can I make this ahead?
- Sure, cook the parts separately and put them together right before the final baking step.
- → How do I store leftovers?
- Pop them in a sealed container in the fridge for up to 3 days. Warm them up in the oven.
- → Can I use different sausage?
- Absolutely, any type of ground Italian sausage works - spicy or mild depending on what you like.
- → Is this recipe freezer-friendly?
- Definitely, you can freeze the prepared but not yet baked squash boats for up to 2 months.