Jerry Arsenis

Island Lake Diner is a true gem! The staff is always friendly and welcoming, making every visit a great experience. The food options are unique and absolutely delicious—there’s something for everyone! One of my favorite parts is that they’ll turn any dessert into a milkshake—such a fun and tasty touch! Highly recommend stopping by for great food and even better service.

William Kucmierowski (Brimstone)

What can I say about this incredible find? EVERYTHING! This is no ordinary diner by any means - don't walk... RUN here! Right off the bat, the staff is friendly, smiling, and attentive. The menu is massive, so you indecisive people should get a head start before you go! Some appetizer hints - go with the Jack Daniel's sliders... beyond delish burgers with a tasty bite. Quality short rib meat blend, and yummy frazzled onions, Everything on the combo platter is home made- nothing frozen. Wings, fried, mozzarella sticks, Mac & cheese bites and chicken fingers. Almost all the sauces are made in-house too. You can literally taste the difference in the chicken fingers - not frozen and made fresh! The marinara is tasty and the honey mustard is BOSS.. Wings are crispy, moist and flavorful, the shining star here is their social media menu which is full of incredible finds that'll get your tastebuds popping! The chicken tacos with an array of different pastas stuffed into the cutlet style shells are insanely filling and flavorful - very recommended! The taco bowls and bread bowls (all homemade) are stuffed with goodness and well worth the money! Save room (it's hard) for dessert and try their crazy milkshakes, giant ice cream cookie, or pies! All in all, this is a HUGE winner and should be celebrated! Enjoy!

+23

Andrew Stover

Very nice and clean diner. I had the prime rib, which was cooked to perfection. The challah bread was so hot and delicious I couldn’t stop myself from filling up on it. For about $28 the prime rib (which was HUGE) came with a potato, salad or soup, AND desert. You aren’t going to find that quality and amount of food for that price anywhere else. The waitress Christine was so sweet. They also have a HUGE menu, so you will find anything you are in the mood for here. The rice pudding, bread pudding, and carrot cake are simply divine.

Donya Parsa

One of the best diners I’ve been too! They have so many different dishes and specials. The staff was so friendly. Definitely be sure to try the pancake tacos for breakfast!!

The Rec Vault

Island Lake Diner was an awesome find. We started with two milkshakes — the Oreo was rich and chocolatey, and the vanilla with a sprinkled cookie was perfectly sweet. The Buffalo Mac & Cheese was creamy and tangy, and the Penne alla Vodka in a crispy bread bowl topped with chicken cutlets was a standout. The Chicken Tacos were super creative — crispy chicken cutlets as taco shells filled with mac & cheese and bacon. The Steak & Egg Skillet was hearty and flavorful with cheesy potatoes and mushrooms. We finished with a crispy waffle topped with cheesecake, berries, whipped cream, and syrup — easily one of the best desserts I’ve had. Definitely a must-visit if you’re near Ronkonkoma!

+4

cor maresca

Great Diner quality and style food, a town favorite with wonderful and polite staff. It's a big place with lots of seating and menu options. Overall, it was a great experience with good quality and prices.

Food was very good. Service was very good and friendly. Quick for lunch. Clean building. Plenty of parking. Would go back

food was very good. Service was very good and friendly. Quick for lunch. Clean building. Plenty of parking. Would go back

Food was very good. service was very good and friendly. Quick for lunch. Clean building. Plenty of parking. Would go back

Food was very good. Service was very good and friendly. Quick for lunch. Clean building. Plenty of parking. Would go back

Food was very good. Service was very good and friendly. Quick for lunch. clean building. Plenty of parking. Would go back

We had a great diner meal here yesterday. My burger was perfect and they have these chicken cutlet taco dishes and its very generous and good tasting.

As soon as i walk in i get met with a wonderful environment. The service was amazing. Kind and friendly staff. The Food was perfectly cooked. It was also excellently portioned. Would definitely c…

As soon as i walk in i get met with a wonderful environment. The service was amazing. Kind and friendly staff. The Food was perfectly cooked. It was also excellently portioned. Would definitely com…

One can always tell by the parking lot that they're doing something correct. The food is great, the bus staff is helpful, the waiters and waitresses are fast and pleasant and helpful. You can see h…

Bring one's appetite for this juicy chicken breast as the taco didn't have enough room for dessert will be back !

Shout out to the chef definitely recommend going. The waiter we had was everything the service was A1 the place was clean friendly environment. When I tell you the home made soup was souping very…

Shout out to the chef definitely recommend going. The waiter we had was everything the service was A1 the place was clean friendly environment. When I tell you the home made soup was souping very i…

Shout out to the chef definitely recommend going. The waiter we had was everything the service was A1 the place was clean friendly environment. When I tell you the home made soup was souping very i…

Visiting from Jersey stopped here before left home, wish this diner was close to home I would come here definitely again. Breakfast was excellent, service was excellent, ambiance was very old schoo…

There is so much difference, variety of food to pick from-I am a big eater and could never finish anything. I order the portions are so huge.

There is so much difference, variety of food to pick from-I am a big eater and could never finish anything. I order the portions are so huge.

Delicious food, friendly staff, very clean. Copious amounts of whip cream included on the cappuccino which I enjoyed, though my boyfriend did not;-)

Delicious food, friendly staff, very clean. Copious amounts of whip cream included on the cappuccino which I enjoyed, though my boyfriend did not;-)

Delicious food, friendly staff, very clean. Copious amounts of whip cream included on the cappuccino which I enjoyed, though my boyfriend did not;-)

Delicious food, friendly staff, very clean. Copious amounts of whip cream included on the cappuccino which I enjoyed, though my boyfriend did not;-)

Excellent service with nice sized portions. This local diner is busy which is a sign people like it Price is reasonable

Excellent service with nice sized portions. This local diner is busy which is a sign people like it price is reasonable

Marilyn DeJesus

We ordered a gyro bowl and blt. Gyro bowl was good and so was the tzatziki sauce. My only complaint would be that the meat was too thin and there was not enough of it. The blt was decent but also lacked bacon.

True Traveler

December 2025. Great Latin staff at work, tasty breakfast, home fries r real good and tasty, nice and crispy bacon, location has plenty of parking space. Coffe refills are on time, prices r normal on the area. Fully recommended.

+3

D Turner

I’ve been going to Island Lake Diner for years, and for a long time it was a reliable, go-to spot in Ronkonkoma — the kind of classic Long Island diner where you could count on large portions, a broad menu, and quick service. Over the years, I’ve tried everything from daily specials to burgers, wraps, and salads, so I’ve gotten a pretty comprehensive feel for what they offer. In my most recent visits, including a dinner a few weeks ago, the overall food quality feels like it has slipped. Nothing dramatic, but enough inconsistency to make me take notice. Some dishes still come out solid, while others feel like they’re made with lower-quality ingredients or simply aren’t prepared with the same attention they used to have. It’s hard to pinpoint whether it’s the kitchen rotating staff, ingredient sourcing, or something else, but the variance is noticeable. One thing that has stayed consistent is the portion size — they are still generous, often to the point where one meal can easily be two. However, the pricing has definitely crept up. Ordering a basic salad through DoorDash pushing close to $30 feels excessive, especially considering this is a traditional diner, not a specialty restaurant. Between the rising prices and the inconsistent meals, I’ve found myself visiting less frequently than I used to. The overall experience is still very much what you’d expect from a Long Island diner: a Greek-themed menu, familiar comfort-food staples, and that classic diner vibe. It’s not bad by any means — it just no longer stands out, and it no longer feels like a dependable “sure thing” the way it once did. Island Lake Diner is still perfectly serviceable for a casual meal, especially if you're local and want a large portion at a standard diner atmosphere. But compared to where it was a few years ago, both the food quality and value have slipped enough that it’s no longer a top choice for me.

We enjoy eating at this dinner. The food is good the portions are large and the service is friendly. \nWe Love the complimentary Cole slaw but gotta try their homemade matzo ball soup

We enjoy eating at this dinner. The food is good the portions are large and the service is friendly. \nWe Love the complimentary Cole slaw but gotta try their homemade matzo ball soup

We enjoy eating at this dinner. The food is good the portions are large and the service is friendly. \nWe Love the complimentary Cole slaw but gotta try their homemade Matzo Ball soup

Went here for a thanksgiving dinner, I ordered the turkey wrap. it was so dried out with shredded pieces of turkey that it was inedible. I sent it back and ate a burger instead. The sweet potato frie…

Went here for a thanksgiving dinner, I ordered the turkey wrap. it was so dried out with shredded pieces of turkey that it was inedible. I sent it back and ate a burger instead. The sweet potat…

So social media did it again - this place is good. We ordered the trending chicken caesar cones and the penne chicken tacos. The penne chicken tacos were delicious, would go back just for tha…

Have lived in this area for 4 years now and have gone here and ordered out on numerous occasions. \nOver the last two days have ordered the 32oz. Matzoh ball soup to go. \nToday order the same but …

This diner is a good place to stop for a bite. I feel like they have a decent amount of parking and the seating inside is good. I typically find myself ordering the chicken parm hero whenever I go.…

I received a solid recommendation that this is one of the best diners in Suffolk County. The nail was hit in the head! Great experience from beginning to end. I ordered the chicken caesar wrap…

I had reviewed their menu online and had an idea of what to expect but wanted to give them a try. I had a cup of soup (Manhattan Clam Chowder) which had very good flavor but not heavy with clams…

I'd give it zero stars if I could. Not very clean and the staff was so rude. I usually don't like to leave negative reviews and if I don't like a place I just don't go back but I was really taken A…

I got chicken salad on a roll and chicken noodle soup to go. The chicken salad left a bad taste in my mouth and for many hours afterwards too (like when you have a bad hotdog that repeats itself). I …

I got chicken salad on a roll and chicken noodle soup to go. The chicken salad left a bad taste in my mouth and for many hours afterwards too (like when you have a bad hotdog that…

I got chicken salad on a roll and chicken noodle soup to go. The chicken salad left a bad taste in my mouth and for many hours afterwards too (like when you have a bad hotdog that repeats itsel…

Alyssa Iorio

We have been here many times before, all of which would’ve resulted in five star ratings. Tonight we had a terrible experience and were left with no resolve. We had a waitress whom we have had before. She is spot on, engaging and considerate. Every time we go in with our kids, she is phenomenal. We put in our children’s order to come out first, along with our soup and salad. All of these things came out in a timely fashion. Our kids fully finished their food (which is an achievement) and my husband and I still did not have our food. Our waitress came over on three separate occasions to say the food would be right out. We heard her go in the back and ask where our food was and what was taking so long. At a certain point, she began to avoid our table. My husband and I decided that we would just take the food to go because the kids were getting antsy. When all is said and done, we are working on 90 minutes of being here already, no food. Our food comes out and my husband asks her if she can just wrap it, kids are ready to go. She asks if we’d even like to try it, to which we replied, “no thank you” and she said ok I’ll get this wrapped and tell my manager. At no point were we looking to have food comped. All we were looking for was an acknowledgement from management - some kind of apology. My husband watched her speak to her managers and tell them how long we waited. She said “it doesn’t take 45 mins to make a pork chop!” and she continued further. My husband took the kids out to the car while I got the check. She did not even want to hand it to me, she apologized again. I opened the check and there were no comps. Again, fine, that’s not what we were looking for. But at this point we watched her tell management about the situation and no one said anything to us. I took the check up front and was not even greeted. My card was run and I got, “here good night.” I was furious. Walked to the car and told my husband who absolutely lost his mind. He went inside and said how unprofessional all of this was. He was told that, “she never told us”, which we knew to be a lie as we watched her talk to them about it! My husband made it clear that it was not in any way our waitresses fault, that she provided nothing but excellent service, that this falls on management. As he left they pulled the waitress in the back, so I can only imagine what happened. Sick to my stomach that this even happened. We have been so many times and this is definitely our last because of how we were not even a priority. So many different ways this could’ve been handled and they failed on so many different levels.