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O SEA | seafood for thought

O SEA | seafood for thought, 109 S Glassell St, Orange

4.9
RESTAURANT RATING: 
EXCEPTIONAL
4.9 out of 5 (183 Ratings)
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< 0.1 miles Honda Center
About O SEA | seafood for thought
The Spotlight on O SEA | seafood for thought

Fresh, Flavorful Seafood Steps from the Stage

Located in the heart of Old Towne Orange, O SEA | seafood for thought brings a modern twist to coastal dining, just a short drive from top local music venues. With its clean, minimalist design and laid-back California vibe, this seafood spot feels both upscale and welcoming. The focus here is on sustainability and bold, globally inspired flavors—from poke bowls and ceviche to grilled fish tacos and hearty salads.

Why Concert-goers love it

O SEA is a hit with music fans thanks to its speedy service and casual, order-at-the-counter setup—perfect when you're short on time before a show. It's located less than 10 minutes from several local venues, making it an easy stop on your way to a performance. The relaxed, low-noise atmosphere makes it ideal for a quick catch-up with friends or a bite before the lights dim.

Who this Restaurant is great for

  • Groups of friends looking for shareable plates and a casual vibe
  • Solo travelers wanting a healthy, fast bite before a show
  • Couples enjoying a romantic dinner with light, fresh flavors
  • Fans seeking a lively but not chaotic pre-show atmosphere
  • Budget-conscious music lovers who value quality without a huge price tag

What People Say

Reviewers rave about the super fresh seafood, especially the poke bowls and salmon salads. Many love the friendly staff and modern, clean space. Guests on TripAdvisor and OpenTable appreciate the quick turnaround and the ability to customize dishes. The vibe is described as "inviting but efficient," perfect for a pre-concert bite.

Areas for Improvement

Some diners mention that seating is limited during peak hours, so it may not be ideal for lingering. A few guests noted that while portions are fresh and flavorful, they may lean smaller for the price. But overall, most agree the quality makes up for it.

The Bottom Line

If you're heading to a show and want fast, sustainable seafood in a cool setting, O SEA is a smart and satisfying choice.

Average Price
$30 and under
Cuisine
Seafood
Opening Hours
Lunch
Tue-Fri 11:30 am-4:00 pm
Sat, Sun 10:00 am-3:00 pm
Brunch
Sat, Sun 10:00 am-3:00 pm
Happy Hour
Tue-Fri 2:00 pm-5:00 pm
Dinner
Tue-Thu 4:00 pm-8:30 pm
Fri 4:00 pm-9:00 pm
Sat 3:00 pm-9:00 pm
Sun 3:00 pm-8:30 pm

O SEA | seafood for thought Customer Reviews

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TripAdvisor Traveler Rating

O Sea is #58 of 481 things to do in Orange

4 of 5 stars4 out of 5
By: HBSnowFlower, Huntington Beach, California
Wed 6 Mar, 2024
l After visiting the new expanded Hilbert Museum, we walked over for lunch at the O Sea (get it – sounds like the OC for its location in Orange) – a bright, modern seafood restaurant in the middle of...

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4 of 5 stars4 out of 5
By: Karen W, Oakland, California
Sun 4 Feb, 2024
l Whenever we travel, we look for good seafood restaurants and O Sea was one on my list! I made reservation on Open Table. We ordered the fried calamari which was very tasty and crispy, the fish tacos...

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5 of 5 stars5 out of 5
By: Mike H, Folsom, California
Sun 8 Oct, 2023
l Great lunch experience just off the circle in orange. Classy but casual vibe, service from the minute we walked in was attentive and friendly. Great menu and all choices we made we’re tasty, clearly...

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O SEA | seafood for thought 109 S Glassell St, Orange