Transfer the skillet to a preheated oven at 350°F (175°C) and bake for about 15-20 minutes, or until the frittata is set in the center and lightly golden on top.
Once baked, remove from the oven and let it cool for a few minutes. Slice into wedges and serve warm!
Notes
Store any uneaten frittata in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave.