01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper or foil.
02 - In a large bowl, toss broccoli florets with olive oil, sliced garlic, salt, and pepper until evenly coated.
03 - Spread broccoli in a single layer on the prepared baking sheet without overcrowding the florets.
04 - Roast for 18-20 minutes, stirring halfway through, until broccoli is tender and edges are golden brown.
05 - Remove from oven and immediately sprinkle with Parmesan cheese. Toss gently so cheese melts slightly over hot broccoli.
06 - If desired, drizzle with lemon juice, sprinkle with lemon zest, and garnish with parsley before serving.