01 - Set the oven to 425°F and line a baking sheet with parchment paper.
02 - In a large bowl, combine Brussels sprouts with olive oil, minced garlic, sea salt, and black pepper; toss to coat evenly.
03 - Place the Brussels sprouts cut side down in a single layer on the prepared sheet.
04 - Roast for 20 to 25 minutes, stirring halfway through, until edges are crisp and golden.
05 - Remove from oven, immediately toss with fresh lemon juice and zest, and sprinkle with Parmesan cheese if desired.
06 - Serve hot as a flavorful side.