Long Island is getting its first UMI. UMI Hotpot Sushi and Seafood Buffet, the all-you-can-eat chain that has grown to 26 locations across 11 states, opens its doors at 278 Portion Road in Lake Ronkonkoma on Wednesday, September 2.

The company announced the date on its own page for the new restaurant in late August, and the response told you everything about how Long Island feels about a serious buffet: hundreds of shares within days, and a comment thread full of people tagging their crab-leg partners and asking about prices before a single table has been set.

What comes off the line

The format is in the name. UMI runs hotpot and buffet under one roof, and the company says the Ronkonkoma spread will include a hotpot at the table alongside fresh sushi and sashimi, oysters, lobster, snow crab, king crab and grilled lamb chops.

That last list is the tell for anyone who has only known the old generation of Long Island buffets. The chain's pitch is volume without the steam-table sadness: seafood on ice, meats sliced for the pot, and the kind of premium items, king crab above all, that a buffet either commits to or quietly leaves off the menu. UMI has built its reputation on committing.

A buffet corner getting a buffet back

The address will be familiar to anyone who has spent time on Portion Road. For years, 278 Portion was Crystal Garden, the Cantonese buffet that fed a steady lunch crowd until it closed, and the neighborhood has been watching the space since. Under UMI's opening announcement, locals were already trading memories of the old room between questions about the new one.

There is something fitting in the succession. A buffet space is a specific piece of real estate, built around a service line and a dining floor that most restaurants cannot use, and they tend to sit empty or become gyms. This one is going straight back to work doing the thing it was built for, at a higher pitch.

The chain finally crosses the line

UMI's New York footprint already rings the Island: Queens Village, Brooklyn, the Bronx, Staten Island, White Plains, Middletown and Albany. Until now the closest a Long Islander could get was the Queens Village location, just over the Nassau line, which is exactly the kind of almost-here that makes a food crowd impatient. September 2 ends the drive.

Ronkonkoma is a shrewd first pick, too. The Portion Road corridor sits minutes from the LIE and Nicolls Road, pulling from Sachem, Holbrook, Farmingville and Lake Grove, and the area around the Ronkonkoma Hub has been adding apartments and reasons to stay local for dinner.

Hotpot, for the uninitiated

If you have never eaten hotpot, the format takes about one round to learn and a lifetime to get tired of. A pot of simmering broth sits at the center of the table, often split down the middle so one side can run mild while the other runs hot. Around it go plates of raw ingredients: thin-sliced meats, seafood, greens, mushrooms, noodles. You cook each piece yourself, seconds for the thin cuts, a few minutes for the rest, and the broth gets better all meal as everything passes through it.

Attached to an all-you-can-eat line, that format becomes something closer to a sport. The pot never runs out of room, the plates keep coming, and dinner stretches as long as the table wants it to. It is a meal built for groups, which is precisely the crowd a 26-location chain knows how to seat.

Free king crab for a share

The grand opening comes with a deal aimed squarely at the phone in your hand: share the restaurant's opening flyer on Facebook, Instagram, TikTok or RED, the Chinese social platform also known as Xiaohongshu, and the restaurant will put free king crab legs on your table.

The restaurant is reachable at 631-888-3979 and 631-888-3909 for details on hours and pricing, which the company had not published as of this weekend.

The timing is its own invitation. September 2 is the Wednesday before Labor Day weekend, which means the first plates of king crab in Suffolk County land just as the last week of summer does. For a corner of the Island that has waited out both a closed buffet and a long drive to Queens, that is a fine way to close out the season.