Generally, southern oc mexican is mediocre. Go down to sd or further north if you want good, authentic mexican.
That being said, I actually think Rasta Taco has the best fish tacos. Taco loco is overrated and quite bad imo.
Gelato at Paradisio, starfish for absolutely exquisite food, Mozambique you can catch a good view, and the food is very good, Rasta taco for the best tacos and the best french fries I’ve tasted… Then there’s a macaron place… And if you get a chance to go over to Newport if you like Italian food to…