Preheat the oven to 400°F for roasting garlic and broccoli.
Place the whole garlic clove (in its skin) on a piece of foil, drizzle with a bit of olive oil, wrap tightly, and roast in the oven for about 20 minutes until soft and caramelized.
While the garlic roasts, pat dry the steak. Mix the chopped fresh herbs with a pinch of salt and pepper.
Rub the herb mixture evenly over both sides of the steak.
Heat olive oil in a cast iron skillet over medium-high heat. Once hot, add the steak and sear for about 3-4 minutes per side (depending on thickness) for medium-rare, or adjust to your desired doneness.
Remove the steak from the pan and let it rest for 5 minutes.
In the meantime, lightly steam or roast the broccoli until tender-crisp.
Prepare the quinoa if not already cooked, warming it slightly if needed.
Squeeze the roasted garlic out of its skins and mix it into the quinoa or drizzle over the steak for an extra layer of flavor.
Plate the steak alongside the quinoa and broccoli, and finish with a light drizzle of extra olive oil if desired. Serve warm.