Since you're in LA, you have got to stop by a King Taco restaurant(shouldn't be too hard to find near you as it's the largest Mexican food chain in LA) and try a carne asada burrito with the red hot sauce, you won't be disappointed. The burritos are $5.25 ($6.25 for all-meat only) with your choice of meat, and includes rice and beans. Burritos are a bit on the small side but have a delicious homemade flavor, and that red sauce can be very hot. Another one of my favorite spots is Rambo's Tacos, a taco truck located in Eagle Rock. They usually arrive at 4:30 PM every day and are open til 1AM or later. Burritos are $5 and are pretty good, especially the carne asada ones. The red sauce here is even spicier than at King Taco, it's so strong you can sniff it from a few inches away, and it's such a dark red color from the high concentration of red chiles used in it. Eating a lot of this sauce has brutal after effects. Finally, I have to recommend Eagles Tacos, another taco truck located in Eagle Rock as well. They offer a large selection of meats, about the amount you'd find in a brick and mortar restaurant. The best thing about this place is the prices, though. $4 even gets you a burrito, and they are way bigger than the ones at King Taco. Tacos are exactly $1, as opposed to $1.20-ish at other places.