Heat peanut oil in a large skillet or wok over medium-high heat.
Add ground beef and cook until browned, breaking into small pieces as it cooks.
Add diced onion and sliced red bell pepper; cook until vegetables are tender.
Add broccoli florets, garlic, and ginger; stir-fry until broccoli is tender-crisp.
In a small bowl, whisk together cornstarch, beef broth, soy sauce, brown sugar, and honey. Pour sauce over the beef and vegetables, stirring to coat. Cook until sauce thickens.
Stir in toasted sesame oil. Serve over cooked rice and enjoy!
Notes
Customize the sauce to your taste by adjusting the amount of soy sauce, brown sugar, and honey. For a spicier version, add red pepper flakes.