1. Start by patting the steak pieces dry with paper towels. Season them generously with salt and pepper on all sides, ensuring a flavorful crust forms during the searing process.

2. Heat the butter and olive oil in a large skillet over medium-high heat. Add the steak pieces in a single layer, being careful not to overcrowd the pan. Sear the steak for 2-3 minutes per side, until it’s nicely browned and cooked to your desired doneness. Remove the seared steak from the pan and set it aside.

3. In the same skillet, add 2 tablespoon of butter. Once the butter is melted, add the minced garlic and sauté for 30 seconds to 1 minute, until fragrant.

4. Pour in the beef broth, scraping the bottom of the skillet to release any browned bits. Stir in the heavy cream and bring the mixture to a gentle simmer.

5. Stir in the freshly grated Parmesan cheese, Italian seasoning, and red pepper flakes (if using). Let the sauce simmer for 2-3 minutes, stirring occasionally, until it thickens to your desired consistency. Season with salt and pepper to taste.

6. Return the seared steak bites to the skillet and toss them gently to coat them in the creamy Parmesan sauce. Let the steak and sauce simmer together for 1-2 minutes, allowing the flavors to meld.

7. Garnish the Garlic Butter Steak with Parmesan Cream Sauce with freshly chopped parsley. Serve the dish immediately over mashed potatoes, rice, or alongside your favorite roasted vegetables for a complete and satisfying meal.