In a large skillet over medium-high heat, heat oil. Add steak and sear until your desired doneness, about 6 minutes per side for medium, then transfer to a cutting board and let rest, 5 minutes. Slice.
In a small bowl, whisk together soy sauce, garlic, lime juice, honey, and cayenne until combined and set aside. Add onion, peppers, and broccoli to skillet and cook until tender, 6 minutes, then add soy sauce mixture and stir until fully coated. Add cooked ramen noodles and steak and toss until combined. Serve.
