Liberally coat a 12-cup muffin pan with cooking spray (or use silicone muffin cups).
Divide onion, sausage, cheese and parsley among the muffin cups.
Top with the egg mixture.
Bake until set and lightly brown, about 20 to 25 minutes.
Let stand for 5 minutes before removing from the pan.
- Daily Values (DVs) are the recommended amounts of nutrients to consume each day.
(-) Information is not currently available for this nutrient.