Step 1:

Season the steak bites generously with salt and pepper. Heat olive oil in a large skillet over medium-high heat. Once the oil is hot, add the steak bites in a single layer. Cook for about 3-4 minutes until browned, then flip and cook for an additional 2-3 minutes until they reach your desired doneness. Remove the steak from the skillet and set aside.

Step 2:

In the same skillet, melt the butter over medium heat. Add the minced garlic and sauté for 1-2 minutes until fragrant, being careful not to burn it. If using, stir in the chopped rosemary for added flavor.

Step 3:

While the steak is resting, bring a large pot of salted water to a boil. Cook the fettuccine according to package instructions until al dente. Reserve 1/2 cup of pasta water, then drain the pasta and set aside.

Step 4:

In the skillet with the garlic butter, pour in the heavy cream and bring to a gentle simmer. Stir in the grated Parmesan cheese and garlic powder, whisking until the cheese is melted and the sauce is smooth. If the sauce is too thick, add reserved pasta water, a little at a time, until you achieve the desired consistency.

Step 5:

Add the cooked pasta to the skillet, tossing to coat it evenly with the creamy sauce. Then, add the cooked steak bites back into the skillet, mixing gently until everything is combined.

Step 6:

Serve the Garlic Butter Steak Bites with Creamy Parmesan Pasta immediately, garnished with fresh parsley.