COAT 2-cup, microwave-safe cereal bowl with cooking spray. ADD egg and milk; BEAT.

MICROWAVE on HIGH 30 seconds; PUSH cooked edges toward center. MICROWAVE until egg is almost set, about 15 to 45 seconds longer.

SPRINKLE with 1 Tbsp. cheese. FOLD omelet in half; SLIDE onto plate. TOP with remaining cheese. SERVE immediately with toasted flatbread.