# El Roy's Express Mex > Food truck offers traditional Mexican dishes with a varied menu including shrimp tacos and fajita burritos. Atmosphere is casual and busy, often with a line and outdoor seating on curbs or parking lots. Prices stay very reasonable, and the vibe is lively with a focus on quick, flavorful meals. Source: https://www.atly.com/location/El-Roys-Express-Mex3 - Address: 401 E Washington St, Petaluma, California, United States - Phone: +17077743738 - Website: https://www.facebook.com/elroysmexicangrillofficialpage/ ## What it is good for - Seafood — 10/10 - Food Trucks — 10/10 - Mexican Food — 10/10 - Food — 9.4/10 - Taco — 8.6/10 - Burrito — 8.3/10 - Authentic — 7.5/10 - Salsa — 6.7/10 - Al Pastor — 6.7/10 ## What people say - "I thought the Mexican food here was simply the best." - "I loved the shrimp tacos; they were delicious." - "The salsa here is hot and flavorful." ## Good to know - Call ahead to order to avoid long wait times. - Bring cash as the credit card reader may not work. - The food truck is open late at night for late-night cravings. - Prices are reasonable, with most meals under $15. - Seating is limited; plan to eat on the curb. ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.