Creating Cheesy Garlic Butter Linguine Beef is simple and enjoyable. Just follow these easy steps:

1. Cook the Linguine: In a large pot of salted water, cook the linguine according to package instructions. Drain and set aside.
2. Sauté the Beef: In a large skillet over medium-high heat, melt 2 tablespoons of butter. Add the sliced beef and season with salt and pepper. Cook until browned, about 5-6 minutes. Remove from the skillet and set aside.
3. Prepare the Garlic Butter: In the same skillet, add the remaining butter and minced garlic. Sauté for 1-2 minutes until fragrant, being careful not to burn the garlic.
4. Make the Sauce: Pour in the heavy cream and stir well. Allow it to simmer gently for 3-4 minutes, letting it thicken slightly.
5. Add the Cheese: Lower the heat and add the mozzarella and Parmesan cheese. Stir until melted and creamy.
6. Combine: Add the cooked linguine and beef to the skillet. Toss everything together until the pasta and beef are coated with the cheese and garlic sauce.
7. Season: Taste and adjust seasoning with more salt and pepper if needed.
8. Garnish and Serve: Once combined, remove from heat. Garnish with chopped fresh parsley for a fresh touch.

This step-by-step method ensures that your Cheesy Garlic Butter Linguine Beef is cooked to perfection every time.