Toss potato and onion slices with 2 tbsp olive oil and salt

Air fry at 180°C for 12 minutes, shaking basket twice

Beat eggs with remaining oil, pepper, and parsley

Let cooked potatoes cool slightly, then fold into beaten eggs

Spray 12 silicone muffin cups with cooking spray

Divide mixture evenly between cups

Air fry at 160°C for 8-10 minutes until set and golden

Cool for 5 minutes before removing from cups

Serve warm or at room temperature