I love latino-owned coffee shops. Frijolito's is one of the best coffee shops (trucks, I should say) that I've tried! They were at the Patchwork Festival in Downtown Santa Ana.
I picked the Mariachi Loco (horchata with a shot of espresso). I love that they have options with soy and almond milk (for my lactose intolerant peeps). I'm addicted and I know that I'll be following their schedule to try more of their delicious drinks!
Tip: You get a free hot chocolate with Yelp check-in.