1Heat oven to 400°F. Spray 15x10x1-inch pan with olive oil cooking spray. Remove fat from pork. Spray pork with cooking spray; sprinkle with 1 teaspoon of the rosemary, 1/2 teaspoon of the salt and the pepper. Place in center of pan.
2In large bowl, mix carrots, onion, garlic powder, the remaining teaspoon rosemary and 1/2 teaspoon salt. Arrange vegetable mixture around pork; spray vegetables with cooking spray.
3Roast uncovered 1 hour to 1 hour 30 minutes or until meat thermometer inserted into center of pork reads 155°F and vegetables are tender. Remove from heat; cover with foil and let stand 10 minutes until thermometer reads 160°F. Slice pork; serve with vegetables.