01 - Generously season the steak pieces with salt and pepper on all sides.
02 - Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Add the steak in a single layer and sear for 2–3 minutes per side until browned and cooked to your preferred doneness. Remove steak from the skillet and set aside.
03 - In the same skillet, add the remaining olive oil and butter over medium heat. Once the butter has melted, add the minced garlic and sauté for 1 minute until fragrant.
04 - Pour in the heavy cream and bring to a simmer. Stir in the Parmesan cheese until the sauce is smooth and slightly thickened, about 2 minutes.
05 - Meanwhile, cook the tortellini in a large pot of salted boiling water according to package instructions; drain well.
06 - Add the cooked tortellini to the garlic cream sauce, tossing to coat evenly. Return the steak pieces to the skillet and gently stir together. Cook for 1–2 minutes, allowing flavors to meld. Garnish with fresh parsley and serve immediately.