How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Spaghetti Squash Marinara?

You need 11 ingredients. The key ingredients include: 2 tsp. olive oil, 2 tsp. butter or margarine, 1 clove garlic, minced, 1/2 c. chopped onion, and more.

Is Spaghetti Squash Marinara suitable as pasta & noodles?

Yes, Spaghetti Squash Marinara falls under the Pasta & Noodles category and is a great choice for this type of meal.

How do I store leftover Spaghetti Squash Marinara?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Spaghetti Squash Marinara Recipe

Name: Spaghetti Squash Marinara
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 tsp. olive oil; 2 tsp. butter or margarine; 1 clove garlic, minced; 1/2 c. chopped onion; 1/2 c. sliced mushrooms; 1 1/2 c. canned, ready cut tomatoes; 1/4 c. chopped parsley; 1/2 tsp. dried basil; salt and pepper to taste; 3/4 c. grated Parmesan cheese; 2 c. cooked spaghetti squash strands

Try this homemade Spaghetti Squash Marinara recipe the whole family will love. Made with olive oil, butter, clove garlic and onion. Easy step-by-step in…

This Spaghetti Squash Marinara relies on simple, everyday ingredients such as olive oil, butter or margarine, garlic, minced and chopped onion. It comes together quickly and makes 4 servings, at about 275 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Pasta & Noodles

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

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Spaghetti Squash Marinara

Tips for the best results

Variations & substitutions

My Personal Notes

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