Carne asada fries are San Diego’s unofficial late-night meal, and nobody here needs convincing. Picture crispy fries piled with grilled steak, cheese, guacamole, and sour cream, eaten straight from a foam box after a long shift or a night out.
The trick is knowing which taco shops are still open when the craving hits. Some of the spots below run around the clock, others stay open until 2 or even 4 in the morning on weekends.
A few have drive-thrus, a couple have hot sauce people talk about, and one has been feeding the city for decades. Every stop on this list serves carne asada fries and keeps late hours, so you can skip the guesswork.
Save it for the next time midnight rolls around and your stomach starts making plans without you.
1. Humberto’s Taco Shop, San Diego, CA
Early birds and night owls can both claim this Southeast San Diego counter. Humberto’s opens as early as 5 AM and stays open until midnight most nights, with Friday and Saturday hours stretching to 2 AM.
The carne asada fries are the headliner here, loaded with well-seasoned meat and fresh toppings. A side of salsa verde is the move, and an agua fresca like horchata rounds out the order nicely.
Rolled tacos and fish tacos also earn plenty of attention, and the California burrito holds its own. Prices stay friendly, generally landing in the $10 to $20 range per person.
A couple of practical notes help. There is no table service and no restroom, so many people grab takeout, and lines tend to build on weekend evenings.
You will find it at 1136 S 43rd St.
2. Tacos El Gordo, San Diego, CA
Open until 4 AM on Fridays and Saturdays, Tacos El Gordo is the closest thing downtown San Diego has to a Tijuana taco stand at closing time.
The setup is part of the fun. Each meat has its own line, so you may hop between stations for adobada, asada, and tripas.
Fresh corn tortillas are made on site.
Carne asada fries sit right on the menu alongside mulas de adobada, which makes it easy to share a pile of fries while working through a round of tacos.
Seating is limited, and eating standing up is common on busy nights. Street parking near 511 F St can be tough, especially Friday and Saturday nights, so walking or rideshare is the smart call.
Sunday through Thursday, the doors stay open until 2 AM.
3. Vallarta Express Mexican Eatery, San Diego, CA
A 24-hour drive-through changes the late-night math completely. Vallarta Express on Genesee Avenue in Clairemont never closes, which means 3 AM fries are on the table any day of the week.
Portions run large. The carne asada fries come piled high, and the menu also features Christian Fries and Super Fries, so fry fans get options.
Beyond the fries, the beef rolled taquitos have long been a reason people keep coming back. California burritos, chicken chimichangas, and a Mexican Caesar salad round out a wide menu.
Parking is usually easy here, which is rare enough to mention. Service moves fast, and there is outdoor seating if you would rather eat on the spot.
4. Trujillo’s Taco Shop, San Diego, CA
College Avenue students already know the shortcut to Trujillo’s. The family-owned shop sits close to San Diego State, and its hours are built for late study sessions, with doors open until 3 AM on Fridays and Saturdays.
The space is bare-bones and compact, with a jukebox adding a little personality. The carne asada fries are a strong order, backed by flavorful meat and tasty sauces.
Burritos get just as much attention. The California burrito is a staple, and the Sigma PI Burrito, a vegetarian option, has a name that fits the neighborhood.
I like that the hours step up through the week. It closes at 1 AM early in the week, 2 AM on Thursdays, and later on weekends.
Free lot and street parking make a quick stop at 5119 College Ave simple.
5. Colima’s Mexican Food, San Diego, CA
Surf and turf fries are the curveball on this list. Colima’s in North Park tops fries with both shrimp and carne asada, though the classic carne asada fries are right there too.
The shop runs 24 hours a day on University Avenue, with a drive-thru for people who want to stay in the car. Service is quick, and portions lean generous.
Latin music keeps the dining room lively. The red enchilada sauce and albondigas soup are standouts if someone in your group wants a break from fries.
Families can feel at home here, with high chairs and a kids’ menu. Dogs are welcome on the outdoor seating area, which makes a late walk around North Park a little more rewarding.
6. Cotixan Mexican Food, San Diego, CA
Hot sauce is the quiet star at Cotixan. Its award-winning salsa is a big part of why this Clairemont spot has such a dependable late-night following.
Open 24 hours, it sits just up Genesee Avenue from Vallarta Express, so the neighborhood is well covered when hunger strikes. The house Cotixan Fries and classic carne asada fries are the go-to orders.
Carne asada chips offer a crunchier spin on the same idea. Potato rolled tacos and al pastor tacos also make the rounds.
On weekends, menudo joins the menu. Parking is usually plentiful, and the full vegetarian and vegan options mean mixed groups can all find something.
7. Roberto’s Taco Shop Bay Park, San Diego, CA
Some San Diegans credit Roberto’s with being one of the first taco shops in town, and the Bay Park location on Morena Boulevard keeps that old-school spirit going around the clock.
The carne asada fries here have a loyal fan base. Add a side of the Bomb Avocado Sauce or the hot carrots for a little extra kick.
Rolled tacos with guacamole are cooked to order, even for drive-thru customers. The red and green salsas and real guacamole help explain why this hole-in-the-wall stays busy.
It is open 24 hours, with free parking that is usually easy to find. For a breakfast pivot, the California Breakfast Burrito is ready whenever the clock flips past dawn.
From South Park to Bay Park, these shops prove carne asada fries taste best when the rest of the city is asleep. Pick one close to home and keep the others in your back pocket.
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