Creating your Sheet Pan Beef Bulgogi is easy and straightforward if you follow these steps:

1. Prepare the Marinade: In a large bowl, whisk together soy sauce, sesame oil, brown sugar, minced garlic, grated ginger, gochujang, and black pepper.
2. Marinate the Beef: Add the thinly sliced beef to the marinade, ensuring each piece is well coated. Cover and refrigerate for at least 30 minutes.
3. Preheat the Oven: Preheat your oven to 425°F (220°C).
4. Prep the Vegetables: While the beef marinates, slice the bell peppers, julienne the carrot, and cut the broccoli into florets. Place them on a large sheet pan.
5. Assemble on the Sheet Pan: Once marinated, add the beef on top of the vegetables on the sheet pan. Spread everything out evenly to ensure even cooking.
6. Bake in Oven: Place the sheet pan in the preheated oven and bake for 20-25 minutes, stirring halfway through. The beef should be browned, and the vegetables tender.
7. Garnish: Once done, remove the pan from the oven. Sprinkle sesame seeds and sliced green onions on top for added flavor and presentation.
8. Serve: Serve the Beef Bulgogi hot over cooked rice or your preferred grain.

With these steps, you’ll create an incredible meal that is sure to impress!