Preheat your oven to 425 degrees. Line a cookie sheet with tin foil.

Toss you brussel sprouts in the olive oil, season with salt and pepper, and place in a single layer on your prepared pan. Roast in the oven for 20 minutes or until you can easily prick with a fork.

Combine the butter and garlic in a small pan. Swirl and cook over medium heat until the butter turns a golden brown color. Stir in the thyme, dijon, and lemon juice. Stir over your cooked sprouts and serve.