These are best served fresh. If you want to make it ahead of time, prep the ingredients but don’t add the chips until just before serving. 
For these photos, I doubled the recipe because I was serving 15-20 people. There was barely any left.I like to use danish feta… It’s just a taste/texture thing, nothing to do with nutrition.
If you don’t love onion (I’m a bit weird and love onion), then use chives or green onion/scallions.
Mix it up and try different ingredients. Other ideas include black beans, capsicum/peppers, mint, pomegranate seeds, cheddar or parmesan cheese.
I used Woolworths Macro corn chips. They were lovely.
If pine nuts are too expensive (coz they are super pricey!) then skip them.
Sriracha is a popular Asian hot sauce. You can get it from all major supermarkets. Or just use some hot sauce, if you want.