Search Recipes

Find your favorite dishes

Creamy Beef Tetrazzini Casserole

Sarah

By Sarah

Feb 25, 2026

15 min prep
30 min cook
4 servings
Jump to Recipe
Creamy Beef Tetrazzini Casserole

Indulge in the ultimate comfort food with this rich and creamy Beef Tetrazzini Casserole, featuring tender sirloin, savory mushrooms, and silky noodles enveloped in a luscious Parmesan cream sauce. Perfect for weeknight dinners or cozy family feasts, this dish promises to warm your heart and satisfy your cravings.

Imagine diving into a golden, bubbly casserole filled with melt-in-your-mouth beef and a medley of flavors that dance on your palate. With just a few simple ingredients, you can create a delightful meal that will have everyone asking for seconds!

Why You'll Love This Recipe

  • Ultimate Comfort Food: This dish is the epitome of cozy, filling comfort food that brings loved ones together.
  • Rich and Creamy Sauce: The luscious Parmesan cream sauce envelops each noodle and piece of beef, making every bite a delight.
  • Simple Ingredients: Made with everyday ingredients, this casserole is both accessible and satisfying.
  • Perfect for Meal Prep: This dish is easy to prepare ahead of time, making it a great option for busy weeknights.

About the Ingredients

Beef Sirloin

This tender cut of meat is perfect for sautéing and adds a rich, beefy flavor that makes the dish hearty and satisfying.

Egg Noodles

These noodles are the ideal base for the creamy sauce, providing a delightful texture that holds onto every bit of flavor.

Olive Oil

A heart-healthy fat, olive oil is perfect for sautéing the beef and vegetables, enhancing the overall flavor profile of the dish.

Onion

Finely chopped onion adds a sweet depth of flavor and aroma to the sauté, making it a fragrant base for the casserole.

Garlic

Minced garlic infuses a rich, savory essence into the dish, elevating the overall taste with its aromatic qualities.

Mushrooms

Sliced mushrooms provide an earthy flavor and a juicy texture, complementing the beef and cream sauce beautifully.

Tips & Tricks

Cook Noodles Al Dente

Cooking the noodles just until al dente ensures they maintain their texture while baking in the casserole.

Use Fresh Ingredients

Fresh herbs and quality cuts of meat make a noticeable difference in flavor; opt for fresh parsley and good-quality sirloin.

Let It Rest

Allowing the casserole to rest for a few minutes after baking helps it set, making it easier to serve.

Experiment with Cheeses

Feel free to mix in different cheeses like cheddar or gouda for a unique twist on the flavor.

Pro Tips

  • Use a Large Skillet: A spacious skillet allows for even cooking and prevents overcrowding when browning the beef and vegetables.
  • Adjust Seasoning: Taste the sauce before combining with the noodles and adjust the salt and pepper to your preference.
  • Cover with Foil Initially: If you want a softer top, cover the casserole with foil for the first 15 minutes of baking.
  • Garnish Generously: Fresh parsley not only adds color but also a burst of freshness that balances the rich flavors.

Step-by-Step Instructions

Preheat and Prepare Noodles

Preheat the oven to 350°F (175°C). Cook the egg noodles according to package directions, then drain and set aside.

Brown the Beef

In a large skillet, heat the olive oil over medium-high heat. Add the sliced beef and cook until browned. Remove and set aside.

Sauté the Aromatics

In the same skillet, add the butter and sauté the onion and garlic until translucent, creating a flavorful base.

Cook the Mushrooms

Add the sliced mushrooms and cook until tender and browned, about 5 minutes, enhancing the dish's umami flavor.

Create the Cream Sauce

Sprinkle the flour over the vegetables, stir well, and cook for 1 minute. Gradually whisk in the beef broth, then stir in the heavy cream, sour cream, and half of the Parmesan cheese before seasoning.

Delicious Variations

Chicken Tetrazzini

Swap the beef for cooked, shredded chicken for a lighter take on the classic casserole.

Vegetarian Version

Replace the beef with a mix of your favorite vegetables and add some extra cheese for depth.

Spicy Kick

Incorporate diced jalapeños or a splash of hot sauce into the cream sauce for a zesty twist.

How to Store Creamy Beef Tetrazzini Casserole

Refrigerator

Store leftovers in an airtight container for up to 3 days. Reheat in the oven or microwave.

Freezer

Freeze the casserole before baking for up to 2 months. Thaw overnight in the fridge before baking.

Reheating

Reheat in the oven at 350°F for about 20 minutes or until heated through, covering with foil if necessary.

Frequently Asked Questions

Can I make this casserole ahead of time?

Yes! You can prepare it a day in advance and store it in the refrigerator before baking.

What can I substitute for beef broth?

You can use vegetable broth or chicken broth if you prefer a different flavor base.

How can I make this dish gluten-free?

Use gluten-free pasta and flour to make the casserole suitable for a gluten-free diet.

Is there a way to make it creamier?

You can add more heavy cream or even cream cheese for an extra rich and creamy texture.

Now that you have this delightful recipe for Creamy Beef Tetrazzini Casserole, it’s time to gather your ingredients and indulge in the comforting flavors that await. Enjoy every creamy, cheesy bite!

Creamy Beef Tetrazzini Casserole

Creamy Beef Tetrazzini Casserole

Indulge in the ultimate comfort food with this rich and creamy Beef Tetrazzini Casserole, featuring tender sirloin, savory mushrooms, and silky noodles enveloped in a luscious Parmesan cream sauce. Perfect for weeknight dinners or cozy family feasts!

15 min
Prep Time
30 min
Cook Time
4
Servings
350 kcal
Calories

Ingredients

Instructions

  1. 1 Preheat the oven to 350°F (175°C). Cook the egg noodles according to package directions, then drain and set aside.
  2. 2 In a large skillet, heat the olive oil over medium-high heat. Add the sliced beef and cook until browned. Remove and set aside.
  3. 3 In the same skillet, add the butter and sauté the onion and garlic until translucent.
  4. 4 Add the mushrooms and cook until tender and browned, about 5 minutes.
  5. 5 Sprinkle the flour over the vegetables, stir well, and cook for 1 minute to remove raw flour taste.
  6. 6 Gradually whisk in the beef broth until thickened.
  7. 7 Reduce heat to low and stir in the heavy cream, sour cream, and half of the Parmesan cheese. Season with salt and pepper.
  8. 8 Return the beef to the skillet, stir to coat, and simmer for a few minutes.
  9. 9 In a large bowl, combine the cooked noodles with the beef and sauce mixture.
  10. 10 Transfer to a greased 9x13 inch baking dish. Top with remaining Parmesan and mozzarella cheese.
  11. 11 Bake uncovered for 25-30 minutes, until golden and bubbly.
  12. 12 Garnish with parsley before serving.

Chef's Note

You can prepare this casserole ahead of time and refrigerate it before baking. Add peas or spinach for extra vegetables. For a lighter version, use half-and-half instead of heavy cream.

Servings: 4

Cuisine: American, Italian-American

Course: Main Course

Nutrition (per serving): 12gg protein