Best Mexican Food in Lake Ronkonkoma

Q: Where are you located?

We are located in **Lake Ronkonkoma, NY** at **279 Portion Rd**

Fresh Flavors, Bold Mexican, Served with Care and Passion

Order online

Featured

View menu

Welcome to Guac Island Mexican Grill

Located at 279 Portion Rd in Lake Ronkonkoma, NY, Guac Island Mexican Grill is your go-to destination for fresh, high-quality Mexican food in a welcoming environment. Whether you’re stopping by for a quick lunch, planning a cozy dinner, or hosting an event, our team is ready to provide an experience that’s simple, convenient, and satisfying. From burritos and tacos to loaded fries and keto-friendly salads, we make every meal an opportunity to enjoy genuine flavor crafted from fresh ingredients.

Fresh Flavors, Every Bite, Every Time

At Guac Island Mexican Grill, each menu item is crafted to showcase freshness and quality. Designed to suit every appetite, the offerings balance hearty meals like burritos and Birria tacos, lighter choices such as keto salads, and flavorful sides including nacho chips with guacamole and loaded fries. Every dish is prepared with care, ensuring a convenient, consistent, and approachable dining experience—whether enjoyed in the restaurant, at home, or at your event.

Explore Our Menu

Fresh Mexican Favorites, Straight to Your Door

Ordering from Guac Island Mexican Grill has never been easier. Whether you’re at home, at work, or anywhere in Lake Ronkonkoma, you can enjoy our menu with just a few clicks. Our delivery and takeout options are designed for convenience without compromising quality. Every order is prepared promptly and packaged carefully to ensure your meal arrives fresh and ready to enjoy. From solo lunch to gathering, we make it simple to bring the Guac Island experience to you—fast, reliable, and effortless.

Order Now

See the Flavor in Every Frame! 📸

Our food gallery captures the fresh ingredients, vibrant presentation, and inviting portions of every dish at Guac Island Mexican Grill. Each photo highlights the quality and care we put into every meal, giving you a glimpse of what to expect—whether you’re dining in, ordering for delivery, or planning a catering event.

Bring Fresh Mexican Flavors to Your Event

Guac Island Mexican Grill makes catering effortless and flavorful. Our team prepares every dish with the same freshness and quality as in our restaurant, delivering meals that are ready to enjoy at your gathering. From small get-togethers to larger celebrations, our catering service ensures your guests experience authentic Mexican-inspired meals with ease, convenience, and consistent quality every time.

Inquire Now

A Welcoming Space for Everyone

Our restaurant is designed to make guests feel at home from the moment they walk in. Guac Island Mexican Grill combines a casual, inviting ambiance with friendly service so that every visit is relaxed and enjoyable. Whether you’re meeting friends, spending time with family, or grabbing a meal alone, our team ensures that every guest feels comfortable and cared for. We believe a great dining experience comes from both the food and the environment, and we strive to get both right every day.

What our guests are saying

Great food and service. Steak is always fresh and cooked on the spot.

Waleed A.

Good food! Will be back, flavorful and enjoyed it very much with my family.

Farhan M.

Great food, always wanna come back! I like the honey chipotle chicken for it's very flavorful and goes great with the bowls... fresh ingredients and they pack the bowl! Great customer service.