Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.
In a large bowl, combine the olive oil, maple syrup, Dijon mustard, minced garlic, salt, and pepper. Whisk until the mixture is smooth and well combined.
Add the halved Brussels sprouts to the bowl and toss them in the dressing until they are evenly coated.
Spread the coated Brussels sprouts in a single layer on the prepared baking sheet.
If using, sprinkle the chopped pecans over the top of the Brussels sprouts for added crunch.
Roast in the preheated oven for about 20-25 minutes, or until the Brussels sprouts are golden brown and crispy on the edges, tossing them halfway through for even roasting.
For an extra touch of flavor, drizzle balsamic vinegar over the roasted Brussels sprouts just before serving, if desired.
Serve warm, and enjoy the delightful combination of sweet and tangy flavors!
Notes
For added crunch, sprinkle with pecans before roasting.