Prep broccoli: Cut the broccoli florets from the thick stalks, leaving an inch or two of stalk attached to the florets. Save the stalks for another use. See ideas here.
Add oil: Coat broccoli florets with the oil in a large bowl or right on the baking sheet. You can use your hands to make sure the broccoli is well coated.
Adding seasonings: Sprinkle on the salt, pepper, garlic and cayenne pepper (if using) and toss to coat.
Roast: Put the broccoli on a rimmed baking sheet and place in the oven for about 25-30 minutes or until broccoli is cooked and the tops of the broccoli are a little brown.
Serve: Serve immediately.
Store: Leftovers can be stored in an airtight container in the fridge for 3-4 days. I don't recommend freezing roasted broccoli.