1. Cook noodles according to package instructions until al dente. Drain and set aside.
2. Heat olive oil in a large skillet over medium-high heat until shimmering. Add the steak slices in a single layer (cook in batches if needed to avoid overcrowding), sear for 2-4 minutes until browned and just cooked through. Remove steak and set aside.
3. Reduce heat to medium and add butter to the same skillet. Once melted, sauté minced garlic for 30-60 seconds until fragrant but not browned. Add red pepper flakes if using and cook for 15 seconds more.
4. Stir in soy sauce, oyster sauce (if using), Worcestershire sauce, and honey. Scrape up any browned bits from the pan. Season with salt and black pepper. Let simmer about 1 minute to slightly thicken.
5. (Optional) If using heavy cream, add it now and simmer gently while stirring until sauce thickens slightly. Add Parmesan cheese and stir until smooth.
6. Add cooked noodles, tossing gently to coat evenly with the sauce. Return steak and juices to the pan, tossing everything together. Cook 1-2 minutes until heated through.
7. Remove from heat and garnish with green onions or parsley and sesame seeds if desired. Serve immediately.