Preheat oven to 400F
Trim ends of brussels sprouts and remove the outer leaves
Rinse trimmed brussels sprouts
Place them in a bowl and add garlic, lemon juice, and olive oil
Toss to coat well
Add salt and freshly ground pepper to taste
Place seasoned brussels sprouts in a cast-iron skillet on a single layer
Roast for 25-30 mins stirring once halfway through the cooking, or until slightly charred