Preheat oven to 400 degrees. In a large bowl, toss the first four ingredients with 6 tablespoons of Parmesan cheese. Lay evenly on a sheet pan and place in oven.
Roast in the oven for 15-18 minutes (rotate the pan after 8 minutes) until some pieces just begin to lightly caramelize and the broccoli becomes tender.
Remove the pan from the oven and immediately toss with the lemon juice. Garnish with the remaining Parmesan.