Spread the panko on a baking sheet and place it in the oven for 2 minutes or until lightly toasted. Remove them from the oven and pour panko crumbs into a bowl.
Place the broccoli in a bowl, add the olive oil, garlic, salt, and pepper, then toss to combine.
Spread the broccoli evenly on the baking sheet and roast in the oven until it is fork-tender, about 8-10 minutes.
Remove from the oven and toss with the panko crumbs and Parmesan cheese.