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 Chicken, Shells, & Spinach Casserole?

You need 10 ingredients. The key ingredients include: 1 whole Onion, Diced, 1 head Garlic, Minced, 2 packages Frozen Spinach, Thawed, 1 whole Rotisserie Chicken, Meat Pulled Off The Bone And Shredded, and more.

Is Chicken, Shells, & Spinach Casserole suitable as meat & poultry?

Yes, Chicken, Shells, & Spinach Casserole falls under the Meat & Poultry category and is a great choice for this type of meal.

How do I store leftover Chicken, Shells, & Spinach Casserole?

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

Chicken, Shells, & Spinach Casserole Recipe

Name: Chicken, Shells, & Spinach Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 whole Onion, Diced; 1 head Garlic, Minced; 2 packages Frozen Spinach, Thawed; 1 whole Rotisserie Chicken, Meat Pulled Off The Bone And Shredded; 1 box Small Or Medium Pasta Shells, Cooked Al Dente; 1 cup Sour Cream; 1 cup Mayonnaise; 1/2 cups Mozzarella Cheese, Shredded; 1/4 cups Parmesan Cheese, Grated; 1/2 cups Breadcrumbs

Try this homemade Chicken, Shells, & Spinach Casserole recipe the whole family will love. Made with Onion, Garlic, Frozen Spinach and Rotisserie Chicken…

This Chicken, Shells, & Spinach Casserole relies on simple, everyday ingredients such as whole onion, diced, head garlic, minced, frozen spinach, thawed and sour cream. It comes together quickly and makes 4 servings, at about 1100 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 Meat & Poultry

1100

kcal

Calories

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

Coconut cream is a reliable plant-based alternative to dairy cream.

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

My Personal Notes

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Chicken, Shells, & Spinach Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions