⅓ cup balsamic vinaigrette salad dressing (such as Kraft®)
1 tablespoon brown sugar
1 tablespoon chopped fresh thyme
1 pound Brussels sprouts, halved
1 pound parsnips, peeled
1 large red onion, thickly sliced
Preheat oven to 400 degrees F (200 degrees C).
Mix salad dressing, brown sugar, and thyme together in a small bowl.
Mix Brussels sprouts, parsnips, and red onion together in a 13x9-inch baking dish. Drizzle dressing mixture over the vegetables and toss to coat.
Bake in preheated oven until vegetables are tender, about 40 minutes.