Heat olive oil in a skillet over medium-high heat.
Add garlic and ginger, sauté until fragrant (about 30 seconds).
Toss in the zucchini slices and cook until just tender, about 4–5 minutes.
Stir in soy sauce, sesame oil, and brown sugar. Cook for another 2–3 minutes until the glaze slightly thickens.
Season with salt and pepper, then sprinkle sesame seeds on top before serving.