01 - Preheat oven to 400°F. Line a large rimmed baking sheet with parchment paper or foil.
02 - Place chicken breasts on one side of the baking sheet. Drizzle with 1 tablespoon olive oil and season with salt and black pepper.
03 - In a small bowl, whisk together honey, cranberries, balsamic vinegar, Dijon mustard, minced garlic, and thyme to make the glaze.
04 - Arrange potatoes, Brussels sprouts, red onion, and carrots on the other side of the baking sheet. Drizzle vegetables with 1 tablespoon olive oil and season with salt and pepper. Toss to coat.
05 - Spoon half of the honey cranberry glaze over the chicken breasts, spreading evenly. Reserve remaining glaze.
06 - Bake for 20 minutes. Remove sheet from oven and gently brush or spoon the remaining glaze over the chicken. Toss vegetables as needed.
07 - Return to oven and bake an additional 15 minutes, or until chicken is cooked through (internal temperature 165°F) and vegetables are tender and golden.
08 - Serve chicken and veggies hot, garnished with extra fresh thyme, if desired.