Steps
1. In a skillet, heat the sesame oil over medium heat.
2. Add the minced garlic and sauté for about 30 seconds until fragrant.
3. Add the ground beef, breaking it up with a spatula, and cook until browned (about 5 minutes).
4. Stir in the sliced onion, bell pepper, and zucchini, cooking for another 3-4 minutes until vegetables are tender.
5. Pour in the soy sauce, mixing well, and season with salt and pepper to taste.
6. Serve immediately over cooked rice or noodles, if desired.