This recipe is a fusion between a Thai marinade and Caribbean style salsa. I am allergic to onions so there are none in this recipe, but some can be added to taste I would suggest either green onions or some sort of sweet onion. This recipe uses some unique tomatoes and bell peppers but just about any tomatoes and bell peppers can be used. Sweet bell peppers and sweet tomatoes seem to have the best flavor combination. I also use half a Pablano pepper but hotter pepper can be substituted to kick up the spice. Regular lime juice can also be substituted for the Key Lime juice but it will lack a bit of the flavor intensity. I like very chunky salsas, but this could be made finer.