Solitary Gourmet

is a Japanese cuisine seinen manga series written by Masayuki Qusumi and illustrated by Jiro Taniguchi.

It has been adapted into a long-running Japanese TV drama series starring Yutaka Matsushige (who is also known for a supporting role in another long-running, live-action TV drama series, Midnight Diner)
 * The 1st season premiered from January 3 to March 21, 2012 for a runtime of 12 25-minute episodes.
 * Season 2 from October 9 to December 26, 2012 for 12 47-minute episodes.
 * Season 3 from July 10 to September 25, 2013 for 12 35-minute episodes.
 * Season 4 from July 9 to September 24, 2014 for 12 32-minute episodes.
 * Season 5 from October 2 to December 18, 2015 for 12 episodes with the runtime fixed for only 30 minutes for the rest of the seasons.
 * A 1-hour special titled Business trip in Asahikawa premiered on January 1, 2016.
 * Season 6 from April 7 to June 30, 2017 for 12 episodes.
 * A 1:30 hour "New Year" special premiered on December 31, 2017.
 * Season 5 from on April 6 to June 29, 2018 for 12 episodes.
 * A 1:30 hour ""New Year's Eve" episode Kyoto-Nagoya Business Trip premiered on December 31, 2018.
 * Season 8 from October 4 to December 20, 2019 for 12 episodes.
 * Season 9 from July 9 to September 24, 2021 for 12 episodes.

It was adapted overseas as a Taiwanese web series (primarily streamed on Alibaba video sites) remake titled Lonely Gourmet: Season 1 &bull; Taiwan (孤独的美食家 第一季·台湾篇) premiered on May 28, 2015 and ran for 12 episodes at 30 min each to Aug 13, 2015.

A anime shorts adaptation premiered on the Production I.G's Tate Anime app on November 29, 2017 and ran for 10 episodes at 4 min each to August 31, 2018.

There is a similar female counterpart solo food-related manga that also has several live-action TV drama season adaptations called Wakako Sake.

Plot
As a salesman, Gorō Inogashira travels around Japan, visiting various restaurants and street booths to sample the local cuisine. Each chapter features a different place and dish.