I live near Lima so I've tried everything on the menu! But to get there you can go from either Shinjuku or Yoyogi.
The burger is the best vege burger I've ever had ! It's a crunchy bread crumbed soy meat with gherkin mayonnaise on a perfectly slightly toasted home made bread bun. You get salad and soup with it. I guess it's pretty expensive for a burger at 900 yen but I think everyone should try it!
I also love their original plate which is different each day, consisting of various little Japanese style dishes. It comes with rice and soup.
The daikon soup is amazing! But I might be biased as I love daikon♥
The staff are lovely and it's not awkward or difficult to go alone.
They also sell snacks like cookies and sandwiches near the front. The korokke sandwiches are so good! I love the cookies too. Some chocolate looking things might be quite bitter though, as I don't think they use a sweetener (I had chocolate coronet and chocolate brownie).