This spaghetti squash with meatballs and marinara recipe is my low-carb answer to spaghetti and meatballs: roasted spaghetti squash topped with homemade turkey-and-beef meatballs, marinara, and melted provolone. The squash gives you the familiar noodle-like shape without the pasta, while the combination of ground turkey and beef keeps the meatballs hearty and flavorful without driving up the cost.

At about $2.54 per serving, this is exactly the kind of dinner I like for the Five and Dine series — inexpensive enough for a regular weeknight but still substantial enough to feel like comfort food. It’s grain-free, high in protein, and easy to adapt depending on what you have in the refrigerator.
This spaghetti squash with meatballs and marinara recipe uses:
- 1 lb ground turkey
- 1 lb ground beef
- 1 tbsp Italian seasoning
- 1 spaghetti squash
- 1 jar tomato sauce
- 12 slices Provolone cheese

Spaghetti Squash with Meatballs and Marinara
Ingredients
- 1 lb Festive Ground Turkey
- 1 lb Ground Beef (85% lean)
- 1 tbsp Italian Seasoning
- 1 Spaghetti Squash
- 1 jar Great Value Tomato Basil Pasta Sauce (24 oz)
- 12 oz Thin Sliced Provolone Cheese (12 slices)
Instructions
- Make the meatballs: Combine the ground turkey, ground beef, and Italian seasoning in a large bowl. Mix gently just until combined — overmixing makes meatballs dense and tough. Form into evenly sized meatballs and place on a baking sheet. If the mixture feels sticky, lightly oil your hands rather than adding breadcrumbs.
- Bake the meatballs: Bake at 350°F for 20–25 minutes, until browned outside, firm to the touch, and 165°F internally. Set aside, reserving a small amount of the pan drippings.💡 Tip: If you don't have a meat thermometer, these will finish cooking in the sauce. Bake until firm on the outside and no pink shows on the inside.
- Roast the spaghetti squash: While the meatballs bake, cut the squash in half lengthwise and scoop out the seeds. Brush the cut sides with a little of the reserved meatball fat — this adds richness and keeps the squash from tasting watery. Place cut-side down on a baking sheet and roast at 350°F for 35–45 minutes, until a fork pulls the flesh into spaghetti-like strands. Undercooked squash won't shred properly and turns mushy instead of stringy.
- Heat the sauce: Warm the marinara in a skillet over medium-low heat. Add the meatballs and simmer 5–10 minutes so they absorb flavor and stay juicy.
- Assemble: Shred the squash into strands with a fork. Top with marinara and meatballs, add the provolone, and let it melt slightly before serving.
Video
Notes
💰 Budget Breakdown
| Ingredient | Cost |
|---|---|
| 1 lb Festive Ground Turkey | $1.98 |
| 1 lb Ground Beef | $5.44 |
| Italian Seasoning | $1.00 |
| Spaghetti Squash | $3.03 |
| Prepared Pasta Sauce | $1.97 |
| Provolone Cheese | $1.84 |
Total Cost: $15.26
Estimated Servings: 6
Cost Per Serving: $2.54
🍽️ Nutrition Information & Diet Notes
This recipe is naturally:
- lower in carbohydrates than the traditional pasta version
- high-protein
- grain-free
For a fully gluten-free version, verify that your sauce and seasonings are certified gluten-free.
📊 Nutrition (Per Serving)
- Calories: 524
- Protein: 45.5g
- Carbohydrates: 17.2g (Net: 14g)
- Fat: 29.7g
Nutrition estimated with Cronometer using cooked-weight values for the meat, since fat renders out during baking.
This recipe is grain-free and lower in carbohydrates than traditional spaghetti and meatballs. With 45.5g of protein per serving, it is also a particularly protein-dense meal. For a gluten-free version, check the labels on your marinara, Italian seasoning, and other packaged ingredients.
🧠 Why This Recipe Works
This spaghetti squash with meatballs and marinara recipe balances affordability, flavor, and texture using simple techniques:
- A blend of turkey and beef keeps meatballs flavorful without high cost
- Spaghetti squash replaces pasta while still holding sauce well
- Meatball drippings are reused to add depth instead of being wasted
- Provolone adds a creamy, slightly sharp finish that ties everything together
The result is a meal that feels hearty and indulgent while staying budget-conscious.
From the blog to your kitchen
The $50 Low-Carb Week
Seven days of low-carb meals for two adults, from one real $50 grocery order — every price on the page.
🎃 Getting the Best Spaghetti Squash
Spaghetti squash can be a little tricky the first time you make it because the goal isn’t simply to cook it until it’s soft. You want the flesh tender enough to separate into strands while still retaining some texture.
Roasting the squash cut-side down helps it cook evenly while allowing the natural moisture to steam the inside. Once it’s tender, let it cool enough to handle, then use a fork to scrape the flesh from end to end. Scraping in long strokes helps produce longer strands rather than short pieces.
If your squash seems watery, allow the strands to sit for a few minutes after scraping and drain away any excess liquid before adding the marinara. This helps keep the finished dish from becoming watery.
Spaghetti squash is a winter squash, and roasting is one of the simplest ways to prepare it. The University of Illinois Extension’s guidance on winter squash covers preparation and cooking methods.
🍝 Why Spaghetti Squash Works Here
Spaghetti squash isn’t going to taste exactly like wheat pasta — and that’s not really the point. Its mild flavor and naturally stringy texture make it a useful vehicle for marinara and meatballs without adding grains.
The important thing is to roast it rather than boil it. Roasting concentrates the squash’s flavor and helps keep the strands from becoming waterlogged. Once the squash is cooked, the strands can be topped with the same marinara and meatballs you’d normally serve over pasta.
🔁 Variations & Substitutions
- Use all turkey for a leaner option
- Swap provolone for mozzarella or parmesan
- Add garlic, onion, or crushed red pepper for extra flavor
- Serve over pasta or rice if preferred
- Add mushrooms to stretch the meal further
For another naturally low-carb, high-protein dinner, try my Chicken in Bacon Cream Sauce.
🥡 Storage & Reheating
Refrigerator: Store in airtight containers for up to 4 days
Freezer: Meatballs and sauce freeze well for up to 3 months
Reheating: Warm gently on stovetop or microwave until heated through. Add a splash of water or sauce if needed to loosen texture
FAQ: Frequently Asked Questions
How do I know when the spaghetti squash is done?
It’s ready when a fork easily pulls the flesh into spaghetti-like strands. If it still feels firm or won’t shred, it needs more time. If you roast it too long, however, the strands can become soft and mushy. Roasting cut-side down at 350°F usually takes 35–45 minutes depending on the size of your squash.
Can I use all beef instead of the turkey and beef blend?
Yes. The blend keeps the meatballs flavorful while lowering the cost, but all beef works fine and makes them a little richer. All turkey works too if you want a leaner, cheaper version — just be careful not to overcook it, since turkey dries out faster.
Can I make the meatballs ahead of time?
Absolutely. Bake them ahead and refrigerate for up to 4 days, or freeze for up to 3 months. When you’re ready, simmer them in the warm marinara for a few minutes to bring them back to juicy — that also lets them soak up more sauce.
Why spaghetti squash instead of pasta?
Swapping in roasted spaghetti squash keeps the dish grain-free and lower-carb while still giving you strands that hold the marinara like noodles. It’s what takes this from a standard meatball dinner to something that fits low-carb and gluten-free eating. Prefer pasta or rice? Serve it over either instead.
Can I freeze the whole dish?
The meatballs and sauce freeze beautifully for up to 3 months. Spaghetti squash is best roasted fresh, though — it can get watery after freezing and thawing. So freeze the meatballs and marinara, and roast a fresh squash when you’re ready to serve.
⚠️ Common Mistakes to Avoid
- Overmixing meat → results in dense meatballs
- Undercooking squash → prevents proper “spaghetti” texture
- Skipping resting time → reduces flavor in meatballs and sauce
👩🍳 Part of the Five and Dine Series
Five and Dine is a growing collection of practical meals designed to cost $5 or less per serving using affordable ingredients and approachable cooking methods.
These recipes focus on realistic cooking for real budgets and busy schedules.
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