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 Make-Ahead French Spaghetti?

You need 12 ingredients. The key ingredients include: 1 medium onion, chopped, 1/2 c. and 3 Tbsp. margarine, divided, 1 (28 oz.) can peeled whole tomatoes, drained, salt, and more.

Is Make-Ahead French Spaghetti suitable as pasta & noodles?

Yes, Make-Ahead French Spaghetti falls under the Pasta & Noodles category and is a great choice for this type of meal.

How do I store leftover Make-Ahead French Spaghetti?

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

Make-Ahead French Spaghetti Recipe

Name: Make-Ahead French Spaghetti
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 medium onion, chopped; 1/2 c. and 3 Tbsp. margarine, divided; 1 (28 oz.) can peeled whole tomatoes, drained; salt; 1 (16 oz.) pkg. spaghetti; 2 Tbsp. flour; 1 c. milk; 1/2 pt. (1 c.) whipping cream; 1/2 (6 oz.) can black olives, cut lengthwise; 1 (4 oz.) can sliced mushrooms, drained; 3/4 c. grated Parmesan cheese; 1 tsp. salt

Try this homemade Make-Ahead French Spaghetti recipe the whole family will love. Made with onion, margarine, tomatoes and salt. Easy step-by-step instru…

This Make-Ahead French Spaghetti relies on simple, everyday ingredients such as medium onion, chopped, salt, (16 oz.) pkg. spaghetti and flour. It comes together quickly and makes 4 servings, at about 319 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

A good 1:1 gluten-free flour blend works well if you need a gluten-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

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

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Make-Ahead French Spaghetti

Tips for the best results

Variations & substitutions

My Personal Notes

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