El Roy's Express Mex
About This Spot
Pulling up to El Roy’s Express Mex feels like discovering a secret well-loved by locals and travelers alike—a spot where the hum of a busy kitchen and the aroma of grilled meats invite you to slow down and savor something genuine. Nestled along the vibrant stretch of East Washington Street in Petaluma, this casual eatery hums with the rhythm of an unpretentious neighborhood favorite, perfectly balancing the laid-back spirit of the town with the punch of bold, authentic flavors.
There’s a natural warmth here, whether you’re grabbing a quick bite or settling in with friends. The pace is easygoing, the chatter lively but never rushed, making it feel more like an impromptu gathering than a stop on your day. The air carries hints of smoky carne asada and the zing of fresh avocado, blending with the faint sweetness of aguas frescas dripping with natural fruit essence.
Eating at El Roy’s becomes a shared moment—a taco folded carefully by a pair of hands that clearly know their craft, a burrito so hearty it might just feed you twice, or a golden, crispy tostada piled with vibrant toppings that surprise your taste buds with every bite. It’s not just food, but a feeling of community and comfort wrapped in traditional Mexican street food spirit, where every mouthful invites you deeper into a story of simple ingredients done incredibly well.
The experience carries with it a genuine ease—people here come hungry and leave satisfied, often with a little more to take home. Whether you’re passing through on a road trip or settling in for a weekday lunch, El Roy’s offers a humble, heartfelt welcome that stays with you long after the last bite.
What’s Available Here
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Kerbside pickup
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Takeaway
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Dine-in
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Delivery
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Fast service
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Serves local specialty
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Lunch
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Dinner
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Solo dining
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Wheelchair-accessible car park
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Wheelchair-accessible entrance
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Comfort food
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Late-night food
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Quick bite
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Small plates
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Lunch
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Dinner
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Table service
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Toilet
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Casual
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Trendy
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Groups
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Tourists
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University students
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Usually a wait
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Accepts reservations
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Credit cards
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Debit cards
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NFC mobile payments
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Credit cards
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Good for kids
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Free of charge street parking
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Free parking lot
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On-site parking
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Parking
Location & Hours
| Monday | 11:00 AM - 10:00 PM | |
| Tuesday | 11:00 AM - 10:00 PM | |
| Wednesday | 11:00 AM - 10:00 PM | |
| Thursday | 11:00 AM - 10:00 PM | |
| Friday | 11:00 AM - 10:00 PM | |
|---|---|---|
| Saturday | 11:00 AM - 10:00 PM | |
| Sunday | 11:00 AM - 10:00 PM |
Nonesuch Arms 12 Jan 2026
Random stop after getting gas on a road trip with my daughter. Google reviews looked solid, so what the hell. We're from Texas and we know authentic Mexican food. This place is delicious and as good as you'd get from a food truck in Tejas. You won't be disappointed!
American Angler 02 Dec 2025
My pal Lee ate half the sandwich I got for lunch leaving both of us still hungry, so he says he'll treat us at his favorite taco truck, El Roy's Taco Truck.. It's just down the road he says, so we jump in his truck and it's full of hay bales stacked 5 high...then he says...since we're here let's just unload these first down in the barn, you get the gates. Well, we got that done and we're on our way, then he says...ohh... I gotta stop at the feed store and load up on alfalfa sacks, it'll just take a second. Well, we loaded 100, 50lb. sacks of alfalfa onto his truck, then he says...Hell, we may as well just go unload it first...okay. Well, we got that stuff barned up nice and neat, and he says to me ...Well...we gonna go eat or what..don't drag your feet! Now....we're finally our way, and he whips into the first fuel station and says ..we're on empty...can I use your credit card, because that alfalfa put my card over it's limit. Anyway, I paid for the 35 gallons of diesel, and I really didn't want to hear anymore stories when we got to the taco truck, so I paid for lunch too. The tacos from El Roy's Truck were Amazing! On our way back to Lee's, I noticed him eyeballing the Chevron stations mini mart and knew right away what he was thinking...so I said...Hey, Lee why don't you pull on in, and I'll get you a 12 pack of Coors for helping me out today. Those tacos were
Jacquie Heffner 21 Nov 2025
Perfect food truck. Be warned the burritos are huge. We get two meals from one burrito. Really tasty food!
Ricky Ignacio 12 Nov 2025
I was in town visiting from LA and found this taco truck late at night. I couldn't be happier with my experience. The tacos were great and, trust me, I know good tacos! Ordered asada and al pastor. Decent prices as well.
David Yun 09 Nov 2025
My favorite burrito in Northern California! This taco truck is absolutely killing the taco/burrito game. Every other taco stand vendor/business owner needs to come and eat from this truck. That way, you'll know how to spread the gospel of fire tacos and burritos. El Roy's is bomb!! Fire all day!!
Dd Nutz 14 Oct 2025
Quality grub for sure. Reasonably priced tasty eats made within minutes to your request. I got sta ndby ordet of 3 tacos- 2 carne 1 pollo plate w refried beans no rice on side. It did NIT disappoint!!!! Fast service w a mellow vibe in ty he air. Who could ask for more~ especially wen total is under $15??!??
Jim Selaya 06 Oct 2025
Delicious, authentic Mexican food. It takes a while to get your order but it's well worth the wait! Its actually a food truck with a line of customers waiting to eat their favorite tacos,burritos, combo plates, etc.