Preheat your oven to 400°F (200°C). This high heat will help to quickly roast the broccoli and sear the steak perfectly.
In a mixing bowl, combine the minced garlic, olive oil, Worcestershire sauce, balsamic vinegar, crushed red pepper, cracked pepper, and salt. This mixture will infuse the steak with flavor.
Slice the flank steak against the grain into thin strips. Add the steak to the marinade and let it sit for about 5 minutes while you prepare the broccoli.
While the steak marinates, wash and cut the broccoli into florets. Place them on the sheet pan, drizzle with olive oil, and sprinkle with salt and pepper. Toss to ensure they are evenly coated.
After the steak has marinated, arrange the steak strips on the sheet pan alongside the broccoli. Spread everything out in a single layer for even cooking.
Place the sheet pan in the preheated oven. Roast for about 10-12 minutes, or until the steak is cooked to your desired doneness and the broccoli is tender and slightly charred.
Once done, remove the sheet pan from the oven. Serve the steak and broccoli over a bed of rice, allowing the juices to soak in. Enjoy your 15 Minute Sheet Pan Steak and Broccoli Dinner hot!