Peel the eggplant and slice into fine matchstick noodles. Slice the steak in thin slivers.
In a small bowl, whisk together the sauce ingredients.
In a large wok or frying pan, heat the olive oil over medium heat and add the eggplant noodles. Saute for 5 - 6 minutes until softened and golden. Add the garlic and saute for a further 30 seconds. Set aside in a bowl.
Meanwhile, steam the broccolini in the microwave until it is to your liking - for me this is about 3 minutes.
In the same pan, turn the heat to high. Add the sliced steak and cook for 1 - 2 minutes until just seared, turning constantly.
Add the sauce and eggplant back to the frying pan and toss to coat for a further 2 - 3 minutes until the steak is cooked to your liking.
Serve with steamed broccolini and top with a scattering of sesame seeds and a drizzle of sesame oil.