Place the ramen noodles in a large bowl (discard the seasoning packets or save for another use) and pour the boiling water over them. Let sit for 6 minutes, stirring every now and then to break up the noodle blocks. Drain and rinse under cold water. Set aside.
2. Step
In a small bowl, combine the garlic, cornstarch, sesame oil, lime juice, and soy sauce. Stir well, then set aside.
3. Step
Place the broccoli in a large, microwave-safe bowl and microwave for 1½ minutes, until soft. Set aside.
4. Step
Heat 1 teaspoon of olive oil in a large, nonstick pan over high heat. Add the steak to the pan and toss with 2 tablespoons of the reserved sauce. Cook until browned, about 2 minutes. Remove from the pan and set aside.
5. Step
Heat another teaspoon of olive oil in the pan, then add the onion. Cook, stirring often, until browned, about 4 minutes.
6. Step
Add the broccoli and cook until lightly browned, about 2 minutes. Remove from the pan and set aside.
7. Step
Add the remaining teaspoon of olive oil to the pan, then add the noodles and the remaining sauce. Cook, stirring constantly, until the noodles soak up the sauce. Return the cooked vegetables and steak to the pan and stir to distribute.
8. Step
Transfer the noodles to a serving dish and garnish with green onions, cilantro, and sesame seeds, if using.
