01 - Pat the steak pieces dry and season generously on all sides with salt and freshly ground black pepper.
02 - Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Arrange the steak in a single layer without overcrowding and sear for 2–3 minutes per side until deeply browned and cooked to your preferred doneness. Transfer the steak to a plate and set aside.
03 - In the same skillet, reduce heat to medium and add the remaining olive oil along with the butter. Once the butter has melted, add the minced garlic and sauté for about 1 minute until fragrant and lightly golden.
04 - Pour in the heavy cream and bring to a gentle simmer, stirring frequently. Gradually whisk in the Parmesan cheese and continue stirring until the sauce is smooth and slightly thickened, approximately 2 minutes.
05 - While the sauce simmers, cook the cheese tortellini in a large pot of generously salted boiling water according to the package instructions. Drain thoroughly in a colander.
06 - Add the drained tortellini to the garlic cream sauce, tossing gently to coat each piece evenly. Return the seared steak to the skillet and fold everything together. Cook for 1–2 minutes over low heat, allowing the flavors to meld.
07 - Transfer to warm serving plates, garnish with chopped fresh parsley and an extra sprinkle of Parmesan if desired. Serve immediately while hot.