Heat oven to 350ºF. For roasted vegetables, combine oil, garlic, thyme, salt and pepper in large bowl. Add vegetables; toss to coat. Spoon into 15 x 10-inch jelly roll pan, spreading in even layer. Set aside. For meatloaf, combine all ingredients in same bowl, mixing lightly but thoroughly. On rack in broiler pan, shape beef mixture into 8 x 4-inch loaf. Place meatloaf on upper oven rack; place vegetables on rack below. Bake 50 to 55 minutes to medium (160°F) doneness, until not pink in center and juices show no pink color and vegetables are tender. Let meatloaf stand 5 minutes before slicing. Serve with vegetables.