Best rice bowls in town, hands down!
Great variety with teishouku (set meals), sashimi and soba (buckwheat noodles). There are manga (Japanese comics) on the shelves and a small playarea for children.
Lunch sets for JPY 800 with salad and miso soup and the portion's pretty decent!
This may not necessarily reflect Japanese cuisine but it definitely is a perfect example of Japanese home-cooking - aji fry (fried mackeral), shogayaki (stir-fried pork with ginger) and more.
Check out their Dosoujin don (rice bowl)! It's the only place in Nozawa Onsen that offers this and it's pretty great! Plus they're located at the bottom of the slopes at Nagasaka. Great to drop by before hitting the slopes again!