Preheat the oven to 350 F. Put separated pieces of frozen broccoli florets into a bowl, drizzle on olive oil to coat, toss, add salt and pepper, and other spices if desired.
Line a baking sheet with parchment and lay out the broccoli florets in one single layer. Bake for 15 minutes. Then sprinkle with parmesan and bake for another 5 minutes or until crispy to your liking and fork tender on inside.