Line a large baking sheet with parchment paper and set aside
In a large bowl, toss frozen broccoli with olive oil, zest, garlic powder, salt and pepper
Spread seasoned broccoli onto the parchment-lined pan, making sure that they are spaced out to evenly roast, and spray with a little olive oil cooking spray
Roast for 20-25 minutes until lightly golden (I roast mine for 25 minutes for a little extra crispiness)
As soon as the broccoli comes out of the oven, sprinkle with the freshly grated Pecorino Romano cheese.