Square Onion

This place has fantastic customer service and great food. One of the best casseroles in the palmetto state.

Despite running in I’on on an almost daily basis, I had no idea that the Square Onion existed prior to this past weekend. Thankfully all that changed and I will now be a regular patron.
My friends and I were in search of lunch to-​go for boating and one of them suggested the Square Onion. It’s right in the front of I’on and was packed when we arrived. Thankfully this gave me a couple of minutes to peruse the menu while we waited in line to order at the counter. This also gave me a chance to drool over all of the delicious desserts on display. Once I got to the counter, I opted for a Perrier and the Meredith — turkey, brie, cranberry horseradish sauce, lettuce, and tomato on focaccia bread.
This is where my only complaint about the Square Onion comes in. We waited and wait and waited. Then one of my friends got her order (also a sandwich ordered immediately before us) 10 minutes before ours were ready. I realize that they were understaffed, but I’m not quite sure how that time gap occurred. Apparently you can call ahead for pickup, which I will be doing in the future.
Once I finally got my sandwich, I DEVOURED it before we even got to the boat. My Meredith sandwich was so fresh and flavorful. The cranberry horseradish sauce is the best part. It adds a perfect flavor and texture to the sandwich. Seriously y’all this is my favorite lunch I’ve had since living in Charleston. The wait was completely worth it because my sandwich was perfection.
All and all, the wait was a little too long but I’m guessing that can be solved by calling ahead next time. I am super excited to have finally found my new neighborhood lunch spot. The Square Onion seems like a great spot to grab lunch to go or else enjoy out on their patio and is a great addition to both I’on and Mount Pleasant as a whole.

Limited but interesting fare. Soup of the Day was what got my attention and it was good… a chicken and bean soup with some bite. Line is long around dining times and customers a bit crunchy. Expect to be licked by dogs as customers bring in their slack-​leashed dogs in tow. Staff is friendly but when it gets busy, you can feel the stress. Seating is limited inside, but plenty of outdoor seating weather permitting.

What a phenomenal place with phenomenal food. Came here for lunch today. Ordered from the chalkboard paid & sat outside in beautiful I’on Square. They brought our lunch. I had The Meredith. It’s a turkey sandwich. Awesome. All cooked in house with the freshest ingredients. Loved it. We sat here today for almost 3 hours taking I. The activity around us & relishing the food & chit chat. A beautiful day with beautiful people watching. What more could one want. Don’t miss this awesome sandwich shop. A must try!

I ordered the green apple salad. It was very small and pre-​made and pre-​cooked chicken that was scarce. For a 12.00 they could have done a lot better! No thanks…

Had lunch with my wife today, I must admit I was reluctant at first but I’m glad we ended up going there. I had the buffalo shrimp wrap and she had the lentil burger, we both enjoyed our food, it is definitely an upscale sadwich shop so expect to pay a bit more but the quality is above par. The portions are in line, no to go boxes but we left full. You can not only see all of the fresh ingredients inside but can absolutely taste the difference in the quality of the food. Inside the restaurant it has a deli feel, go to the counter and they bring the food to you. The winner here is outside seating, really cool vibe in the area, parklike setting and very relaxing, very manicured and clean, I would go back just to get dessert and sit outside. I say grab some chow and check out this area, you can easily spend some time walking around the area as well as it is very nice!

I have to say… I was excited in coming to this olace. I heard a lot of good things about it and read a lot of good reviews. I decided to go there on a Friday at lunch. When i arrived around 12… It didn’t seemed that busy. But by the time my friend arrived to meet me and we were ready to order it got packed
We waited for more than 30 minutes and saw people coming out who had take away orders who came after us.
Normally i don’t complain much about a wait if the food is amazing but when i asked the girl at the counter how long it would take, she almost bit my nose off stating that it was busy when we entered rather than just asking the cook when it would be done
Any way, we got our sandwiches. I had the turkey parm and basically, it blew me away! Nice dressing, well flavored, perfectly cooked.
I wish service would have been better because basically, it’s a 3-​star for the sandwich only!

I had lunch here yesterday and it was pleasant to sit outside, though not worth the incredibly long wait, nor the mediocre sandwich that I had. Too many restaurants and delis that are far better than to waste your time here.

Square Onion is by far my favorite place to get a sandwich in the Charleston area. Their pricing is really fair, especially because all of their food is fresh, unprocessed, and made in house. The Whitney (Rustic roll, cucumbers, tomatoes, hummus, oregano oil dressed greens) is, by far, the very best vegan sandwich I’ve ever had, as their hummus is out of this world. During Fall/​Winter, the butternut squash soup is ridiculous, too.
The other thing I really love about Square Onion is that the owners/​chefs are in the store every day. They’re so friendly, and they’re genuinely passionate about their food.

This is my favorite sandwich café on the planet. When you are in Charleston, SC it is an absolute «must stop». My favorite sandwich is the Chicken Parmesan. If available, you must also try the Lemon Daffodil dessert — simply heavenly. Owner and staff are also great folks.

Sometimes you just want lunch, but other times, you want amazing lunch. If you’re downtown, you have gourmet sandwiches and such practically being thrown at you. In Mt Pleasant, the options are somewhat limited and Square Onion really nails it!
I often forget that there’s restaurants and such in I’on and not just row after row of million dollar homes. I went ahead and bookmarked this place a while ago to remind me to check it out… so glad I did. I’ll definitely be back because I wanted to order everything, but I settled on The Goose.
I’m usually skeptical about ordering roast beef out and about because of the quality, but when I asked about it, they began telling me how tender the roast beef was and that it’s done completely in house… Sold! The sandwich had a thick layer of rare roast beef with fresh mozzarella, basil, tomato, and balsamic vinaigrette on a lightly toasted rosemary focaccia bread. I was tempted to go with a half sandwich/​half soup, but I knew I wanted the whole Goose. Plus, the sides looked too phenomenal not to try. I went with the potato salad and it was excellent with a good southern mustard flavor in there to boot.
I was planning a mid-​day coffee from Collective as a post lunch treat, then I saw the dessert case. That plan went out the window and a new dessert plan entered the scene. Almost every time I get desert I can’t stray from whatever the chocolate option is, but I had a taste of the Lemon Daffodil that gave me the strength to do so. It was so simple yet I’ve never had anything like it before (probably cause I always order chocolate). It’s basically crumbled up angel food cake mixed with lemon pudding and whipped cream. Come to think of it, you could definitely add chocolate into the mix on that Lemon Daffodil. For less than five bucks, it was a casserole size portion that I defeatedlly took home for later. They could easily make the desserts half the size.
They have seating outside in the beautiful I’on community square and a handful of inside tables as well. It’s very cozy inside, but we were the only ones there so it wasn’t cramped. you can tell they put every effort into the food and all of the staff seemed genuinely excited about it. That’s how you know you’ve got a good thing going.

I work nearby and this is my go to place for lunch. I also don’t hesitate to buy stuff to take home, from casseroles to crostini or Okra chips. Their sweets are also delicious, my favorites are gooey cake, lemon squares and the caramel-​oatmeal cookies. If one of the daily specials doesn’t turn you one they have plenty of great items on the daily menu, my fav is the Caprese sandwich with prosciutto, best I’ve had outside of Italy. I’ve Never been disappointed by the food there. You can also order and pay online, which may save you from waiting in line at lunch. Check them out, you’ll love it.

Best sandwiches in the area. Fresh„ local, gourmet and exquisitely delicious. Sides, sweets and staff all rate as well. Favorite lunch spot hands down… especially on great weather days sitting outside at one of the tables under the trees.

Excellent lunch sandwiches and salads. The soup is great too. Plenty of seating especially outside when the weather is nice!

Super delish specialty sandwiches and desserts! The owners couldn’t be nicer!
It’s a bit pricey for what you get, but I think it’s worth it for taste and service!

Fantastic sandwich shop! it is a little expensive but really good.

Fantastic specialty sandwiches, side dishes and desserts. A great place to pick up a sandwich for on the go. Always a great place for specialty dishes for the busy family around the holidays. I have never been disappointed by any sandwich choice!

Yummy, scrumptious, sammies.
Cute place for lunch in postcard perfect Ion Square.
Order at the counter from the owners, take a seat in their super casual dining area or peruse their nicely curated wine bottle selection, their dips, casseroles to go, desserts, pick up the paper and prepare to wipe your plate clean.
Go for the Sassafras, the Meredith or their special of the day and you won’t be sorry. Ditto for their quiches and salads. My favorite is the Pick Two deal which gives you the best of both worlds, where you can have a half and half combo of whatever sammie, salad, quiche, soup you desire.
They offer lovely side dishes (orzo salad, grilled veggies, etc) and private catering. I attended a bridal luncheon that featured their home-​y grub. There, I proceeded to house (not very ladylike, I know) their mini ham biscuits along with chicken salad and pimento cheese (separate, not together) finger sandwiches (who knew pimento cheese was so good?) All in All, this outfit is a one stop shop with fresh ingredients, fun combinations and service with a smile. Can’t beat that.