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 Overnight Spinach Manicotti?

You need 13 ingredients. The key ingredients include: 1 carton (15 ounces) reduced-fat ricotta cheese, 1 package (10 ounces) frozen chopped spinach, thawed and squeezed dry, 1-1/2 cups shredded part-skim mozzarella cheese, divided, 1/2 cup grated Parmesan cheese, divided, and more.

Is Overnight Spinach Manicotti suitable as vegetarian?

Yes, Overnight Spinach Manicotti falls under the Vegetarian category and is a great choice for this type of meal.

How do I store leftover Overnight Spinach Manicotti?

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

Overnight Spinach Manicotti Recipe

Name: Overnight Spinach Manicotti
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 carton (15 ounces) reduced-fat ricotta cheese; 1 package (10 ounces) frozen chopped spinach, thawed and squeezed dry; 1-1/2 cups shredded part-skim mozzarella cheese, divided; 1/2 cup grated Parmesan cheese, divided; 2 large egg whites; 2 teaspoons minced fresh parsley; 1/2 teaspoon salt; 1/2 teaspoon onion powder; 1/2 teaspoon pepper; 1/4 teaspoon garlic powder; 4-1/2 cups meatless spaghetti sauce; 3/4 cup water; 1 package (8 ounces) manicotti shells

Try this homemade Overnight Spinach Manicotti recipe the whole family will love. Made with ricotta cheese, spinach, mozzarella cheese and Parmesan chees…

This Overnight Spinach Manicotti relies on simple, everyday ingredients such as large egg whites, minced fresh parsley, salt and onion powder. It comes together quickly and makes 4 servings, at about 252 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 Vegetarian

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

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

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

My Personal Notes

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Overnight Spinach Manicotti

Tips for the best results

Variations & substitutions

My Personal Notes

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