If you can, arrange a rack in the middle of the oven. I don't always do this because half the time I'm cooking something else in there, like chicken
As we've already established, add the baking sheet to the oven while it preheats. Get it hot, hot, hot!
Dry off your broccoli. After rinsing your broccoli (which you should do!), make sure you blot off as much of the water as you can.
Use parchment paper for easy cleanup. I almost always do! Wait to line the hot pan until right before you add the broccoli in a single layer
Not a week goes by that I don't roast a head of broccoli. It's easy, nutritious, and, oh yeah, my can-be-very-"opinionated"
The Kitchn staffers). Other times, I'll sprinkle the florets with za'atar and squeeze lemon juice on top.