Low Calorie Spaghetti Squash Marinara

Prep: 10 min Cook: 35 min Serves: 4 Cuisine: Italian

A light, tomato‑rich spaghetti squash topped with aromatic herbs—perfect for a low‑calorie, veggie‑centric dinner that feels like classic Italian pasta.

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Ingredients

  • 1 medium spaghetti squash (2 1/2 to 3 lb.)
  • 1/4 cup chopped onion
  • 2 cloves garlic, minced
  • 1 tablespoon cooking oil
  • 1 (16 oz.) can tomatoes, cut up
  • 1 teaspoon dried Italian seasoning
  • 1/4 teaspoon salt
  • 1/4 teaspoon pepper
  • 1/8 teaspoon fennel seed, crushed (optional)

Instructions

  1. Halve the spaghetti squash lengthwise.
  2. Scoop out the seeds.
  3. Place the squash cut side down in a baking dish.
  4. Prick the skin all over with a fork.

Tips & Substitutions

To enhance the flavor, sauté the onions and garlic before adding the tomatoes. For a richer taste, consider substituting with fire-roasted canned tomatoes. If you prefer a heartier dish, you can add cooked ground turkey or lentils. The optional fennel seed adds a nice depth, but feel free to omit if you don't have it on hand. This recipe is a great base for exploring other Italian recipes.

Serving Suggestions

Serve the spaghetti squash marinara topped with freshly grated Parmesan cheese and fresh basil for a burst of flavor. It pairs beautifully with a side salad or crusty whole-grain bread. For a complete meal, consider complementing it with a protein like grilled chicken or shrimp. This dish is also a fantastic base for variations, so feel free to explore with other vegetarian recipes.

Storage & Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, simply microwave for 1-2 minutes or warm on the stovetop over low heat, adding a splash of water or broth to keep it moist. This dish also freezes well; just make sure to cool it completely before transferring to a freezer-safe container.

Nutrition & Diet Analysis (per serving)

Each serving of Low Calorie Spaghetti Squash Marinara contains roughly 80 calories, with 6g protein, 9g carbohydrates, and 2g fat. It is a good source of protein (13% of the Daily Value) and calcium (10% of the Daily Value).

80 kcal 4% DV
Protein Fat Carbs

Macronutrients

Protein 6.5g 13% DV
Total Fat 2.2g 3% DV
Carbs 8.8g 3% DV
Fiber 1g 3% DV
Sugar 1.8g 4% DV

Electrolytes

Sodium 257.3mg 11% DV
Potassium 227mg 5% DV
Cholesterol 3mg 1% DV

Vitamins & Minerals

Vitamin A 30mcg 3% DV
Vitamin C 8.4mg 9% DV
Calcium 134.3mg 10% DV
Iron 1mg 6% DV
Diet fit High-protein Keto-friendly Under 400 cal Low-fat

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use a different type of squash?

Yes, you can substitute spaghetti squash with other varieties like butternut or acorn squash, but the texture will differ. Keep in mind that cooking times may vary, so adjust accordingly to achieve the desired doneness.

How do I know when the spaghetti squash is done cooking?

The spaghetti squash is done when the skin is tender and easily pierced with a fork. After baking, let it cool slightly before shredding the flesh with a fork to create the 'spaghetti' strands.

Can I make this recipe vegan?

Absolutely! This recipe is naturally vegan as it contains no animal products. Just ensure that any additional ingredients, like cheese or toppings, are also plant-based to keep it fully vegan-friendly.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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