Bring 1 cup water to boil in large non-stick skillet. Add carrots and asparagus, reduce heat; cover and simmer 5 to 6 minutes until asparagus are crisp-tender. Drain well; wipe out skillet.
Heat oil in skillet over medium heat. Add potatoes, sprinkle with 1/2 teaspoon salt and cook for 5 minutes till bottoms are lightly browned. Turn with spatula and press down, pushing some potatoes up the sides of the skillet.
Mix remaining 1/2 teaspoon salt with the eggs; pour mixture over potatoes. Top with the carrots and asparagus. Cover and cook over medium-low heat 10 minutes or till eggs are almost set.
Sprinkle with cheese and scallions, cover and cook 2 to 3 minutes to melt cheese.