Heat the oil in a large skillet over medium-high heat. Add the ground beef and cook until browned, about 5 minutes. Drain any excess fat.
Add the onion, bell pepper, and garlic. Cook and stir until the vegetables are softened, about 2 minutes.
In a small bowl, combine the soy sauce, sesame oil, brown sugar, ginger, black pepper, and red pepper flakes. Pour over the beef and vegetables and cook, stirring, until heated through, about 2 minutes.
Serve hot.
Interesting Facts
The ground beef used in this recipe can be substituted with ground turkey, pork, or chicken.
This dish is a great way to use up any leftover vegetables in the refrigerator.
This dish is great served over white or brown rice, noodles, or quinoa.