Another vote for Gibroni’s if you like Detroit-style, it’s my favorite pizza around. Buona Forchetta for a traditional Neapolitan pie.
As someone else mentioned, Truly and Apizza Doho up the road are both great with Truly taking the slight edge for me personally.
As a non-hiker non-birder, will comment on the food side of things!
Seasurf Fish Co has to be the winner for combo of price / quality / the type of food you would want in a cute beach town. Depending how much you care about food you might want to venture into Dana Point and San Juan Capistrano.…