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Las Margaritas

"Hecho En Mexico"

About Us

Las Margaritas – Authentic Mexican Restaurant in O’Fallon, MO

Since 2015, Las Margaritas has proudly served O’Fallon, MO with authentic Mexican cuisine made from fresh ingredients and bold flavors. As a locally loved Mexican restaurant in O’Fallon, we specialize in generous portions of fan favorites like sizzling fajitas, flavorful burritos, and our signature margaritas. Whether you're joining us for a casual lunch or a festive dinner, our welcoming atmosphere and delicious dishes make every visit memorable. We’re proud to serve guests from Wentzville, Lake St. Louis, St. Peters, Moscow Mills, and surrounding areas. Don’t miss our freshly made guacamole—it’s a must-try! Come experience the best in Mexican food near O’Fallon, MO, and discover why Las Margaritas is a local favorite for flavor, fun, and family.

Areas Served

Languages Spoken

English
Spanish

What We Offer

Our Services include:

Events & Celebrations: Celebrate life’s special moments with us! From birthday bashes and retirement send-offs to holiday parties and wedding rehearsal dinners, we offer the perfect setting for any occasion. Our team is here to help make your private event unforgettable, whether it's a casual get-together or a formal gathering.
Dining Options: Enjoy your meal your way! Whether you're dining on our cozy patio, picking up curbside, or grabbing a quick to-go order, we’ve got you covered. Our full-service bar, kid-friendly menu, and daily lunch and margarita specials make every visit a treat for the whole family.
Catering Services: Let us bring the flavor to you! Our catering services are ideal for office lunches, family gatherings, and special events. With a variety of menu options and flexible service, we make it easy to impress your guests with delicious food and stress-free planning.

Our Products include:

Appetizers
Salads
Specials
Vegetarian Options
Combination Platters
Mexican Rice
Mexican Street Corn
Trash Can Nachos
Fresh-Made Guacamole
Cheese Steak Tacos
Mushroom Steak Fajitas
Franzia Fries
Franzia Special
High-End Tequila
Tacos
Especialidades
Carnitas
Quesadillas
Chimichangas
Fajitas
Molcajete Ranchero
Burrito Chile Colorado
Burrito Gonzales
Fajitas Bravas
Tacos Carne Asada Especiales
Arroz Mayas
Tampiquena
Pollo Margaritas

Testimonials

On 10/4/2025 Liberty Penna had this to say:
I dined by myself and was slightly worried they would take awhile to come to me because it was a busy Friday night and I was just a table of 1. I was proven wrong. The staff continously checked on me and served me everything I requested. Their jumbo margarita had an exquisite flavor and was strong. Though there was no price on the menu, I knew what I was getting into. The jumbo margs run you about $13. I also ordered the chillaquiles and it came out quickly. It was so delicious and the perfect slight spice. It was a huge portion and I left with plenty of leftovers. I would 1000% come back again. The staff did a great job despite how busy it was and I am super impressed!

On 10/3/2025 Julie Donohue had this to say:
The food was very good. Great Margaritas.

On 9/29/2025 Steve Kaikkonen had this to say:
We sat outside and it was perfect weather. Food and service were good.

On 9/13/2025 Linda Alexander had this to say:
Some of the most authentic and delicious food we’ve had in years. Chilaquiles were fantastic.

On 9/2/2025 Michael Lamkin had this to say:
Service is excellent, food is always hot and quick too

Contact Us

Las Margaritas
1165 Technology Dr O Fallon, MO 63368
Phone: (636) 362-2004
Mobile: (636) 362-2004
Email: lasmargaritasofallon1@gmail.com

Off Technology Drive between Holiday Inn and Staybridge Suites

Where To Find Us

Payment Types Accepted

American Express, Cash, Debit Cards, Discover, MasterCard, Visa

Our Hours

Holiday Hours May Vary. Please Call For Details.

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 - 10:30 PM
Saturday: 11:00 AM - 10:30 PM
Sunday: 11:00 AM - 10:00 PM

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DoorDash: https://www.doordash.com/store/las-margaritas-o'fallon-170726/13297364/
GrubHub: https://www.grubhub.com/restaurant/las-margaritas-mexican-restaurant-1165-technology-dr-ofallon/2520234