Oven roasted brussels sprouts are crispy on the outside and tender on the inside.
Heat oven to 425 degrees. Line a baking sheet with parchment and set aside.
Cut Brussel sprouts in half and remove any damaged outside leaves. Place on baking sheet. Drizzle with olive oil, sprinkle with salt and red pepper flakes and toss to coat. Place in oven and roast for about 20 to 25 minutes - shaking pan every 10 minutes - until edges are dark and crispy.
Remove pan from oven. Drizzle on lemon juice and sprinkle over Parmesan cheese. Taste and add more salt if needed. Serve immediately.