Spray a 10 oz (300 mL) microwaveable ramekin or custard cup with vegetable spray. Place ham slice in ramekin. Sprinkle with onion and 1 tbsp (15 mL) shredded cheese. In a small bowl, beat together eggs, yogurt and pepper until blended; pour into ramekin. Sprinkle with parsley and remaining cheese. Cover loosely with wax paper, turning it back slightly to vent. Microwave on medium high (70%) for 2 1/2 to 3 minutes or until cooked as desired. Remove from microwave but do not remove plastic wrap; let stand for 1 minute. Remove wax paper and serve.
Preparation: 5 minutes
Cooking: 2-1/2 minutes
Standing: 1 minute