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 Tortellini Spinach Casserole?

You need 10 ingredients. The key ingredients include: 1 package (19 ounces) frozen cheese tortellini, 1 pound sliced fresh mushrooms, 1 teaspoon garlic powder, 1/4 teaspoon onion powder, and more.

Is Tortellini Spinach Casserole suitable as pasta & noodles?

Yes, Tortellini Spinach Casserole falls under the Pasta & Noodles category and is a great choice for this type of meal.

How do I store leftover Tortellini Spinach Casserole?

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

Tortellini Spinach Casserole Recipe

Name: Tortellini Spinach Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 package (19 ounces) frozen cheese tortellini; 1 pound sliced fresh mushrooms; 1 teaspoon garlic powder; 1/4 teaspoon onion powder; 1/4 teaspoon pepper; 1/2 cup butter, divided; 1 can (12 ounces) evaporated milk; 1/2 pound brick or Muenster cheese, cubed; 3 packages (10 ounces each) frozen chopped spinach, thawed and squeezed dry; 2 cups shredded part-skim mozzarella cheese

Try this homemade Tortellini Spinach Casserole recipe the whole family will love. Made with frozen cheese tortellini, mushrooms, garlic and onion powder…

This Tortellini Spinach Casserole relies on simple, everyday ingredients such as sliced fresh mushrooms, garlic powder, onion powder and pepper. It comes together quickly and makes 4 servings, at about 913 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.

My Personal Notes

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Tortellini Spinach Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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