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 Slow-Cooker Stuffed Shells?

You need 12 ingredients. The key ingredients include: 1 carton (15 ounces) part-skim ricotta cheese, 1 package (10 ounces) frozen chopped spinach, thawed and squeezed dry, 2-1/2 cups shredded Italian cheese blend, 1/2 cup diced red onion, and more.

Is Slow-Cooker Stuffed Shells suitable as pasta & noodles?

Yes, Slow-Cooker Stuffed Shells falls under the Pasta & Noodles category and is a great choice for this type of meal.

How do I store leftover Slow-Cooker Stuffed Shells?

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

Slow-Cooker Stuffed Shells Recipe

Name: Slow-Cooker Stuffed Shells
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 carton (15 ounces) part-skim ricotta cheese; 1 package (10 ounces) frozen chopped spinach, thawed and squeezed dry; 2-1/2 cups shredded Italian cheese blend; 1/2 cup diced red onion; 1/2 teaspoon garlic powder; 2 teaspoons dried basil; 1/2 teaspoon dried oregano; 1/2 teaspoon dried thyme; 2 jars (24 ounces each) roasted garlic Parmesan pasta sauce; 2 cups water; 1 package (12 ounces) jumbo pasta shells; Optional: Additional shredded Italian cheese blend and sliced fresh basil

Try this homemade Slow-Cooker Stuffed Shells recipe the whole family will love. Made with ricotta cheese, spinach, Italian cheese and red onion. Easy st…

This Slow-Cooker Stuffed Shells relies on simple, everyday ingredients such as diced red onion, garlic powder, dried basil and dried oregano. It comes together quickly and makes 4 servings, at about 673 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

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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Slow-Cooker Stuffed Shells

Tips for the best results

Variations & substitutions

My Personal Notes

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