O Frenchi's  12604 Hillcroft Street 713-723-2060

Ocean Seafood  10508 Airline Drive 281-999-0419

Old Galveston Seafood  8449 Gulf Freeway # A 713-943-3730

Old Hickory Inn  5427 South Braeswood 713-723-8908

Old Hickory Inn Barbeque  8338 Southwest Freeway 713-271-8610

Old Saigon Restaurant  6841 South Gessner 713-777-2037

Old San Francisco Steakhouse  8611 Westheimer 713-783-5990

Olive Garden  7525 FM 1960 Road West 281-890-0784

Olive Garden  12711 Gulf Freeway 281-922-1523

Olive Garden  1000 Memorial City Way 713-973-6287

Olive Garden  1010 Old Spanish Trail 713-665-6373

Olive Garden  10830 Northwest Freeway 713-682-1465

Olive Garden  5930 Westheimer Road 713-953-9482

Olive Garden  2750 Highway 6 South 281-531-8829

Olive Garden  9080 Southwest Freeway 713-774-0198

Ollie's Country Kitchen  2901 Dowling Street 713-652-5995

One Dragon Restaurant  9310 Bellaire Boulevard 713-995-6545

One's A Meal Restaurant  607 West Gray Street 713-523-8432

One's A Meal Restaurant  5525 Memorial Drive 713-861-8300

ORI Sub Restaurant  1200 York Street 713-228-4228

Oriental Cooking  11851 Bissonnet Street 281-530-7575

Oriental Express Wok  5426 Antoine Drive 713-682-8288

Oriental Gourmet  16630 El Camino Real 281-280-8662

Oriental Gourmet  8456 Gulf Freeway 713-643-1201

Original Napoli  9604 Westheimer Road 713-972-1997

Original Napoli Flying Pizza  9604 Westheimer 713-972-1997

Original New Orleans PO-Boy  3902 Main Street 713-524-5778

Original Pasta Company 4820 West Bellfort 713-726-1166

Original Pasta Company 348 FM 1960 West 281-580-0494

Original Pasta Company 12513-A Westheimer Road 281-597-1978

Original Pasta Company 6439 West 43rd Street 713-688-8757

Original Pasta Company 5761 Woodway 713-266-0553

Original Pasta Company 11623-B Katy Freeway 713-266-0553

Original Pasta Company 4485 FM 1960 West 281-580-6299

Original Pasta Company 19732 Tomball Parkway 281-807-0660

Original Pasta Company 6803 Highway 6 North 281-345-1022

Original Pasta Company 911 Nasa Road 1 281-480-0082

Original Pasta Company  11623 Katy Freeway # B 281-589-6740

Original Pasta Company  5761 Woodway Drive 713-266-0553

Original Pasta Company  4485 FM 1960 Road West 281-580-6299

Original Pasta Company  19732 Tomball PKWY 281-807-0660

Original Pasta Company  6803 Highway 6 North 281-345-1022

Original Pasta Company  2617 West Holcombe Boulevard # A 713-839-0098

Original Timmy Chan  6418 Martin Luther King Jr 713-733-8289

Orlando's Fresh Seafood  4603 Highway 6 North 281-550-2777

Ostioneria 7 Mares  911 Spencer Highway 713-947-6387

Ostioneria 7 Mares  826 Zoe Street 713-673-3332

Ostioneria 7 Mares  4602 Irvington Boulevard 713-692-7776

Ostioneria 7 Mares Seafood  1806 WIRT Road 713-956-1220

Ostioneria Michoacan  10822 West Bellfort Street 281-530-9514

Ostioneria Puerto Vallarta  7068 Lawndale Street 713-926-6344

Ostioneria Y Taqueria El Regio  8334 Gulf Freeway 713-640-1345

Ostionoria 7 Mares  10010 Fulton Street 713-699-2720

Otilia's Mexican Restaurant  7710 Long Point Road 713-681-7203

Otto's Bar B Que & Hamburgers  500 Dallas Street 713-659-6886

Otto's Bar-B-Q  5502 Memorial Drive 713-864-2573

Otto's Hamburgers  5502 Memorial Drive 713-864-8526

Ouisie's Table  3939 San Felipe Street 713-528-2264

Our Deli  6666 Harwin Drive # 265 713-532-7977

Our Deli  505 North Sam Houston PKWY East # 160 281-448-3354

Out To Lunch Deli Cafe  1980 Post Oak Boulevard # E1 713-621-4643

Outback Steakhouse  650 North Sam Houston PKWY East # 219 281-260-9762

Outback Steakhouse  13240 Northwest Freeway 713-460-5639

Outback Steakhouse  4 FM 1960 Road West 281-587-0044

Outback Steakhouse  5710 FM 1960 Road West 281-580-4329

Outback Steakhouse  10001 Westheimer Road # 1010 713-978-6283

Ovantojitos Los Reyes  2903 Broadway Street 713-644-4855

Oven  403 Westheimer Road 713-874-1100