Start by removing the stems from the rapini.
Place it into a perforated pan.
Steam in the CTExpress for 2 minutes at 212F (100C).
Meanwhile, thinly slice the red onion.
When the rapini is done steaming, spray it with cold water to shock it.
Squeeze excess moisture from the rapini.
Run a knife through the rapini a few times but don't chop it too fine.
Meanwhile, preheat the CTExpress in the broil mode.
Add olive oil to a medium sized nonstick pan.
Add the sliced onions.
Cook close to the broiler for 5 minutes.
Meanwhile, combine the eggs, buttermilk, basil, feta, salt, and pepper flakes.
Take the onions out and add the chopped rapini and the radishes. Return under the broiler for 3 more minutes.
Take the pan out and stir in the egg mixture.
Spread everything out well.
Cook on the bottom of the oven for 5 minutes.
Then on top for 2 more.
Loosen with a rubber scraper.
Put a large plate on top and...
...flip it over.
Garnish with homemade tomato basil salsa and enjoy!