1. Combine veal, carrots, onion, mushrooms and liquid, bread crumbs, salt, pepper and sour cream in large bowl. Mix lightly with fork; spoon into a 9x5x3-inch loaf pan; invert onto shallow pan; carefully remove loaf pan; score top of loaf lightly.
2. Bake in moderate oven (375°) 1 hour and 15 minutes, or until rich golden-brown on top.