If you want to serve more people, do this in 2 skillets or 2 batches otherwise it can get watery.
I use Violife vegan feta in place of sheep feta sometimes, but shaved Parmesan is also nice. If you love cilantro, that would be perfect in place of the basil, but so would dill or chives. If you like things spicier, use a Serrano pepper or add a pinch of cayenne. Fire-roasted or regular frozen corn would be fine in place of fresh (but summer corn is SO good.) No corn for you? Cauliflower rice would be a great stand-in. I could even see how a little bacon to start the saute would be an amazing add-in.