PREHEAT oven to 350°F. Heat dressing in large nonstick ovenproof skillet. Add asparagus; cook 5 min., stirring occasionally.
BEAT eggs, milk and 1 cup of the cheese in medium bowl with wire whisk until well blended. Add to asparagus; stir gently.
BAKE 25 min. or until centre is set, sprinkling with remaining 1/2 cup cheese after 20 min. Cut into 4 wedges to serve.