This is a list of manga which you may want to consider when selecting specifically with food, cooking, and eating in mind. These aren’t formal reviews, but I’ll link to a formal review when and if I do them. This new format is to get you acquainted with multiple titles at once.
Food Wars!: Shokugeki no Soma

Manga or Anime?: Both.
Review: Here!
Age range: Older High School
Quick Synopsis: Yukihira Soma, a teenage boy who runs a traditional Japanese restaurant with his father, goes to an elite cooking school wherein students compete to be considered the top in their field. They have to participate in matches, which determine their ranking.
Have I read this?: Up to volume 3.
Kitchen Princess

Manga or Anime?: Manga
Review: Soon!
Age range: Upper Elementary and Above
Quick Synopsis: Najika dreams of becoming a pastry chef like her late parents, and loves to connect with others through her food. When she enters the prestigious Seika Academy, will she be able to follow her dreams and find the boy who gave her a silver spoon to comfort her after her parents’ death?
Have I read this?: Yes!
Sweetness and Lightning

Manga or Anime?: Both.
Review: Soon!
Age range: Upper Elementary and Above
Quick Synopsis: Math teacher Kouhei Inuzuka is raising his young daughter Tsumugi as a single father after the unexpected loss of his wife. Although he’s bad at cooking, a chance encounter with one of his students, Kotori Iida, leads to them going on a journey to learn how to cook delicious food.
Have I read this?: Yes!
Giant Spider & Me: A Post-Apocalyptic Tale

Manga or Anime?: Manga.
Review: Not yet.
Age range: This title is rated Teen. It may be appropriate for younger audiences, though.
Quick Synopsis: A young girl named Nagi and a giant spider make an unusual pair in this post-apocalyptic story, but living in the mountains is lonely, and they’ve managed to find each other. Join them in their strangely sweet domestic bliss as they spend their days sharing tea and throwing picnics, proving that love (and delicious food) can bring together even the most unlikely of friends.
Have I read this?: Not yet. It’s on my list though!
Looking for more? I’ll add to this list as I discover more titles, but this list at Anime Planet is very comprehensive.