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 Fettuccini Alfredo Casserole?

You need 11 ingredients. The key ingredients include: 12 ounces fettuccine pasta, 3 tablespoons olive oil, 4 -5 sliced white mushrooms, 3 cups half-and-half, and more.

Is Chicken Fettuccini Alfredo Casserole suitable as meat & poultry?

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

How do I store leftover Chicken Fettuccini Alfredo Casserole?

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

Chicken Fettuccini Alfredo Casserole Recipe

Name: Chicken Fettuccini Alfredo Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 12 ounces fettuccine pasta; 3 tablespoons olive oil; 4 -5 sliced white mushrooms; 3 cups half-and-half; 1/4 cup butter; 1 tablespoon garlic powder; 1 tablespoon seasoning salt; 1 tablespoon black pepper; 3/4 cup grated parmesan cheese; 2 boneless skinless chicken breasts; 1 cup French's French fried onions

Try this homemade Chicken Fettuccini Alfredo Casserole recipe the whole family will love. Made with pasta, olive oil, white mushrooms and butter. Easy s…

This Chicken Fettuccini Alfredo Casserole relies on simple, everyday ingredients such as fettuccine pasta, olive oil, sliced white mushrooms and half-and-half. It comes together quickly and makes 4 servings, at about 733 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

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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Chicken Fettuccini Alfredo Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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