A Japanese eatery/restaurant that serves traditional or homestyle Japanese dishes.
駅前に安くておいしい和食屋がある。
There is an inexpensive and tasty Japanese restaurant in front of the station.
昼は和食屋で定食を食べることが多い。
I often eat set meals at a Japanese restaurant for lunch.
彼は地元の和食屋を手伝っている。
He helps out at a local Japanese restaurant.