Beef Stroganoff Casserole: A Comforting, Creamy Delight

Step 2: Sauté the Vegetables

1. In the same skillet, add another tablespoon of oil or butter.
2. Sauté the onions until translucent, about 3–4 minutes.
3. Add the garlic and mushrooms, cooking until the mushrooms are golden and soft.

Step 3: Make the Sauce

1. Sprinkle the flour over the vegetables in the skillet and stir well to combine.
2. Gradually pour in the beef broth, stirring constantly to prevent lumps.
3. Add Dijon mustard and Worcestershire sauce, and let the mixture simmer for 3–4 minutes until thickened slightly.
4. Lower the heat and stir in the sour cream. Taste and adjust seasoning with salt and pepper.

Step 4: Assemble the Casserole

1. Preheat your oven to 350°F (175°C).
2. In a large mixing bowl, combine the cooked noodles, sautéed vegetables with sauce, and the seared beef strips. Mix until everything is well coated.
3. Transfer the mixture into a greased 9×13-inch baking dish.
4. Sprinkle the shredded cheese evenly on top, if using.

Step 5: Bake

1. Cover the casserole with aluminum foil and bake for 20 minutes.
2. Remove the foil and bake for an additional 10 minutes, or until the cheese is melted and bubbly.

Step 6: Serve

1. Let the casserole rest for 5 minutes before serving to allow the flavors to meld.
2. Garnish with freshly chopped parsley for a burst of color and freshness.

Tips for the Perfect Casserole

• Beef Choice: Use tender cuts like sirloin, tenderloin, or ribeye for a melt-in-your-mouth texture.
• Pasta: Egg noodles work best, but fusilli or penne can be used if preferred.
• Make Ahead: Prepare the casserole a day ahead and refrigerate; bake it the next day for a richer flavor.
• Creamy Variation: Mix in a bit of cream cheese with the sour cream for an extra creamy sauce.

Why You’ll Love This Dish

This Beef Stroganoff Casserole combines tender beef, earthy mushrooms, and creamy sauce all baked with comforting noodles. It’s a hearty, one-dish meal that satisfies the soul and makes weeknight dinners a breeze. Plus, leftovers taste even better the next day!

If you want, I can also make a shortcut version of this casserole that can be ready in under 30 minutes without losing any creaminess. It’s perfect for busy weeknights.

Do you want me to do that?