Marinate Beef: In a large bowl, combine soy sauce, brown sugar, honey, rice wine vinegar, sesame oil, garlic, and scallions. Add sliced beef and massage marinade into the meat thoroughly. Allow beef to marinate for at least 30 minutes.

Prepare Rice: Rinse rice under cold water until the water runs clear. Cook according to package instructions. Season cooked rice with salt and pepper, cover, and keep warm until serving.

Cook Bulgogi: Heat olive oil in a skillet over medium-high heat. Add marinated beef and sliced onions. Cook until beef is browned and onions are tender, about 5–7 minutes. Add cornstarch slurry and cook, stirring until sauce thickens slightly. Adjust salt and pepper to taste.

Steamed Broccoli with Cheddar: Preheat the oven broiler. Bring a pot of salted water to boil. Add broccoli florets and simmer until bright green and tender, about 5–7 minutes. Then drain. Season with salt and pepper. Place on a baking sheet and top with cheddar. Melt under the broiler.

Serve bulgogi alongside white rice, kimchi, steamed broccoli with cheddar, and chilled coconut water.