Step 1: Bring a large pot of salted water to a boil. Cook the tortellini according to package directions until tender. Drain and set aside.

Step 2: Season the steak cubes with salt, pepper, and garlic powder. Heat olive oil in a large skillet over medium-high heat. Add the steak bites in a single layer and sear for 2-3 minutes per side, until browned and cooked to your liking. Remove and set aside.

Step 3: In the same skillet, reduce heat to medium and melt 1 tablespoon of butter. Add minced garlic and sauté until fragrant, about 1 minute.

Step 4: Pour in the heavy cream and bring to a gentle simmer. Stir in Parmesan cheese and mozzarella, allowing it to melt completely. Add pesto, then season with salt and pepper to taste.

Step 5: Add the cooked tortellini to the sauce and gently stir to coat. Fold in the steak bites. Warm everything together for 1–2 minutes. Garnish with parsley or basil before serving.