COAT 12-oz. microwave-safe coffee mug with cooking spray. ADD hash browns. MICROWAVE on HIGH 1 minute. Add egg and water; beat until blended. MICROWAVE on HIGH 30 seconds; stir. MICROWAVE until egg is almost set, 15 to 30 seconds longer.
TOP with salsa and cheese. SERVE immediately.
Mexican-inspired ingredients, like black bean and corn salsa, make this individual microwave egg scramble even more flavorful.
Microwave ovens vary. Cooking times may need to be adjusted.