A San Clemente instituion... They have burgers, burritos & breakfast.
Bathroom is a bit scary and the restaurant area is a bit "old school", but the Zucchini fries are AWESOME! Definitely get the small because you get a lot for your money.
This is my favorite place to stop for a snack when driving to & from San Diego and LA. It's a good thing that I don't live too close to here otherwise I'd be getting the Zucchini Fries a few times a week!