Hearty Spaghetti Squash Marinara is a ground chicken tomato sauce served over roasted squash strands instead of pasta. It comes together in about an hour and a half using ingredients most people already have on hand. The result is a filling, protein-forward dinner that doesn’t require a special grocery run.
Why this recipe works
Two things carry this dish. First, the squash roasts at 375°F while the sauce cooks on the stovetop — the timing lines up so nothing sits and goes cold waiting for something else to finish. Second, using canned diced tomatoes with basil and garlic already in them does double duty: it builds flavor fast without a long simmer, so the 20-minute sauce actually tastes like it cooked longer. Ground chicken is lean and mild, which means it picks up the tomato and garlic rather than competing with them — the sauce stays bright instead of heavy.
Mistakes to avoid
- Not draining excess liquid from the squash before plating. After you scrape the strands out, blot them briefly with a paper towel or let them sit in a colander for a minute. Watery squash dilutes the sauce immediately.
- Using plain canned diced tomatoes instead of the basil-and-garlic variety. If that’s what you have, add an extra clove of garlic and a pinch of dried oregano to compensate — otherwise the sauce tastes flat.
- Not cooking the ground chicken through completely. Ground poultry must reach 165°F (74°C) internally. Break it up well in the pan and don’t rush this step — pink ground chicken is not safe to eat.
- Adding the fresh basil too early. Basil stirred in while the sauce is still at a hard boil turns dark and bitter. Pull the pan to a low simmer first, then stir it in right before serving.
- Skipping the tomato paste when you’re out of it. A tablespoon of ketchup works as a substitute in a pinch — it adds body and a touch of sweetness without changing the dish noticeably. Skip the garnish jalapeño if you don’t have one; it’s not worth buying a whole pepper just for a few slices on top.
Hearty Spaghetti Squash Marinara
Ingredients
Spaghetti Squash Ingredients
1 medium spaghetti squash
3 tablespoons olive oil
1 pinch salt
1 pinch ground black pepper
Marinara Ingredients
14 ounces tomatoes - diced with basil and garlic
2 tablespoons tomato paste
2 cups ground chicken (minced chicken)
¼ medium yellow onion - diced
2 cloves garlic - diced- 2 tablespoons olive oil
½ cup basil - chopped- 1 pinch salt
- 1 pinch ground black pepper
Topping Ingredients
- 1 tablespoon basil - chopped
1 small jalapeño - sliced
Instructions
- Halve the spaghetti squash, scoop out the seeds, and bake at 375 degrees Fahrenheit until soft and easy to scoop out the “spaghetti”. This should take about 45 minutes. During this time, prep the marinara and cashew cream.
- In a pan, heat olive oil and cook garlic until fragrant. Add the ground chicken and allow it to cook.
- Add tomatoes, tomato paste, salt, and pepper, then allow to simmer until sauce thickens and is heated for approximately 20 minutes. Stir in fresh basil. Keep on a low simmer until squash has finished baking.
- Plate spaghetti squash, top with marinara, fresh basil, a drizzle of olive oil, salt, and pepper.
Nutrition
Frequently asked questions
Can I use ground turkey instead of ground chicken?
Yes — ground turkey is a direct swap at the same quantity and same cook temperature of 165°F (74°C). Dark-meat ground turkey will give you a slightly richer sauce; lean ground turkey breast behaves almost identically to ground chicken here.
My store only has a large spaghetti squash. How do I adjust?
Use half the large squash and refrigerate the other half cut-side down for up to four days. A large squash may need an extra 10–15 minutes in the oven, so start checking at 45 minutes by piercing the flesh with a fork — it should give easily.
Can I make the marinara sauce ahead of time?
Yes, the sauce keeps in the fridge for up to three days and actually tastes better the next day once the flavors settle. Store it separately from the squash — reheating them together makes the squash soggy.
Try these next
- Hearty Beef Cauliflower Bake
- Spicy Beef Stuffed Peppers
- Chicken Macadamia Sausage Rolls
- Creamy Beef Spinach Pasta
