Koyomi Japanese Cuisine

This place has become our favorite since we moved back to Castro Valley from Oakland.

The staff here are delightful and polite and make thoughtful selections. They know my kids order already without me having to say!

I've had a variety of rolls and appetizers, but the spicy tuna roll that is the house special is amazing. Has a delicious BBQ sauce on it and the whole thing is wonderful.

Great ambiance and super clean.

Love it!

My husband and I are livid.
We just went to Koyomi and first of all it reeks of bleach in the restaurant and then I was served a salad and it was totally wet
and then on top of the water was way too much dressing
Anyway, it's not the end of the world. The problem is that my teriyaki salmon was not cooked (see for yourself).
We paid $63 !!!and it was just awful. We are disgusted. They are charging high prices for mediocre food. We told the waitress, she said sorry. Didn't offer to cook the salmon a little more... we used to go there twice a week. I guess we won't go back.

A cute local Japanese restaurant. The nigiri was fresh but very small, so I would definitely still be hungry after just that. The double salmon roll, I was disappointed by the vinaigrette that they drenched the roll in, so i couldn't taste the freshness of the salmon, I will definitely request no sauce on this roll if I order it again. I think the simplicity of just lemon with the salmon would be good.
The chirashi donburi was very good, a good variety of fresh sashimi. We also ordered a tempura and salmon teriyaki bento. Everything came with a piping hot miso soup and salad. The salmon and tempura were both cooked well.
Service was quick. Someone came by to refill my water without me asking. Overall, a great local Japanese restaurant, fresh fish, portions are a bit small, I only tried one roll but it was a miss for me. But I will definitely return to try other rolls and items on the menu.

This was the halfway point to meet my BFF and it did not disappoint! We both ordered the lunch bento and split an order of tempura. Just enough food for the two of us! The portions were just right for the price. Whenever I try a new Japanese restaurant I get beef teriyaki and tempura so I can have a baseline. The amount of beef was more than I expected for the price and it was surprisingly juicy! The tempura had just the right amount of batter so it didn't taste like it was all crunchy batter. My friend ordered the saba shioyaki and she said it was tender and cooked just right. Having the california roll in the bento box was a nice touch and the roll tasted fresh! Loved the way the bento boxes came in two trays to make a whole "box". Very cute. The waitress was nice and filled our waters even after we paid which is nice cuz usually they just near you to leave. We might have to make this our regular spot! Parking was a little confusing in the back and street parking is an hour so keep track of time!

Hmmm. I think I wanna give this place another try. My bf likes it but I think I need to try other items. We got the bento box with steak and tempura which he really liked. I got the lion king and ameabi nigiri the lion king was hot at the top and cold at the bottom, I don't think they fully backed the roll and just seared the top. It was still good but I would like it baked entirely. Ameabi (sweet shrimp) came with 3 for a good price. It wasn't as sweet as normal but still good. The fried head was really good. Service was good! We were checked on all the time. Ambiance is nice, open spot. Overall, I'll come back and give it another try!

Place was really clean. We arrived just when they opened. Food was great! Service was fast! Staff was super nice! Will definitely add this to our go to places!

Note: limited parking at the back of the restaurant

(Overall: 77% | C) - I got the combination dinner which was reasonably priced and relatively large quantity of food for a dinner bento. The salad and miso soup are pretty standard. The california roll is a very simple roll with very basic flavors, but I haven't had one of those in a long time and found it quite nice. The chicken is tender, but unfortunately bland. The nigiri is cute but not particularly vibrant nor exciting. I found the service to be a bit inconsistent and the atmosphere to be a little bit messy, so the review is pretty middle of the road here.

IG: @amei.eats

A family favorite. We love this local restaurant. I heard the owners changed which may be why I don't see the normal wait staff.
Before COVID, we would celebrate birthdays here or just go for a nice dinner. It's hard to tell from outside but it's an absolutely lovely restaurant inside. And we've always been pleased with the service. It took my family a while to want to go out post-COVID (we just got used to DoorDashing everything). But we finally made it back to Koyomi and it's as charming as ever.
We ordered:
Salmon Teriyaki
Chirashi Donburi
Rainbow Roll
Philadelphia Roll
Combination Dinner Box
Everything was so good! I'm particular about sashimi and Koyomi's was fresh and delicious. So glad they're in our town.

I'm not sure if we came at a bad time but the sushi rolls we ordered didn't taste very fresh.


The parking here is not so great - it's all street parking on a main busy street.

Was looking for a close to home for some sushi. I didnt want to go to far and this place was just down the street. Super nice staff. Clean and inviting atmosphere. Only thing that might be a little tricky it the parking. Very limited.

I ended up getting a veggie roll. OMG delicious with just the right amount of right amount of tartness from the veggies and rich in combo with the soy sauce. Very tasty.