3G's Cafe in Palo Alto is a block away from California Ave: far enough off the main drag that I've never noticed it until recently. It's a Bolivian cafe that serves a few items that I recommend: salteñas, cuñape, and pan de arroz. The salteñas are like empanadas; I got one filled with beef stew, which is nicely spiced. It's worth trying once. Some other items are very addictive, and worth a trip:
The cuñape is a cheese pastry that is light and airy, yet simultaneously super-chewy. Made with yucca flour.
The pan de arroz is like a flattened biscuit: very savory and flaky.
Also recommended: a slice of the dulce de leche roll. It's even better than it looks.
This place is an inexpensive reprieve from the rest of Palo Alto: $4 each for the salteñas, and $2 each for the cuñape and pan de arroz. The Cafe is closed Saturdays, but open Sundays for the Farmer's Market crowd. You can get a 5% discount if you "check in" to that other website.