1: Preheat the oven to 400°F (200°C).
2: Prepare the steak and vegetables (baby carrots, broccoli, red bell pepper, onion).
3: In a bowl, mix olive oil, balsamic vinegar, soy sauce, Dijon mustard, garlic powder, black pepper, salt, and dried parsley.
4: Place the steak and vegetables on a sheet pan.
5: Drizzle the mixture over the steak and vegetables, and toss to coat.
6: Roast in the preheated oven for about 30 minutes or until the steak is cooked to your liking and the vegetables are tender.
