Heat oven to 325F. Combine seasoning ingredients; press 1/2 onto beef roast. Combine remaining seasoning with vegetable ingredients in large bowl; toss.
Place roast on rack in shallow roasting pan. Insert ovenproof meat thermometer so tip is centered in thickest part of beef, not resting in fat. Do not add water or cover. Roast in 325F oven 1-3/4 to 2 hours for medium rare; 2-1/4 to 2-1/2 hours for medium doneness. After 1/2 to 1 hour, place vegetables, except zucchini, on rack around roast.
Remove roast when meat thermometer registers 140F for medium rare; 155F for medium. Transfer to board; tent with foil. Let stand 15 to 20 minutes. (Temperature will continue to rise about 5F to reach 145F for medium rare; 160F for medium.)
Increase oven temperature to 425F. Add zucchini to vegetables on rack; roast 15 to 20 minutes or until tender. Carve roast; serve with vegetables. Season with salt.