Hana no Zubora Meshi

From MangaHelpers:

This manga features the daily life of a young woman named Hana, who lives alone while her husband is away long-term for work. She's a little chubby, and she often cooks sloppy, but delicious, meals to eat in her sloppy, solitary home!

Nominated for the 4th Manga Taisho in 2011.