Place all the ingredients for salsa in a bowl, toss to combined.
Season with cayenne pepper, salt, and pepper to taste.
Chill in fridge until ready to use.
Pat dry prawns and scallops, season generously with salt and pepper.
Heat pan on med high and add oil.
When pan is smoking, add scallops and prawns.
Cook prawn for 1-2 mins each side.
Allow scallops to sear for 2-3 mins on each side without moving it to get that nice golden brown colour.
Serve on a bed of prepared salsa, and garnish with some chopped spring onions.