About Donut Gallery Diner
KB institution — open since 1972 in the back corner of Harbor Plaza. Run by the Zambrano family for 50+ years until they lost the lease in 2023; the neighboring Golden Hog owners stepped in to keep the diner alive, same menu and same booth-and-fluorescent feel. Breakfast and lunch all day, fast and friendly, the kind of place where regulars know each other and the staff knows everyone's order. The donuts are the namesake but the breakfast plates and Cuban-American lunch are what locals come for.
Best for
- breakfast
- after-school lunch
- with kids
- local-feel
What to order
- pancakes
- Cuban-American breakfast
- donuts
- coffee
Hours
- Monday06:00-15:00
- Tuesday06:00-15:00
- Wednesday06:00-15:00
- Thursday06:00-15:00
- Friday06:00-15:00
- Saturday06:00-15:00
- Sunday06:00-15:00
Hours change — call ahead before driving over.
Where
83 Harbor Dr, Key Biscayne, FL 33149 · Harbor Plaza neighborhood.
Sources we verified against
- www.yelp.com/biz/donut-gallery-diner-key-biscayne ↗
- kbindependent.org/2023/04/27/golden-hog-rescues-island-breakfast-insti ↗
- business.keybiscaynechamber.org/list/member/donut-gallery-diner-1001 ↗
Last verified 2026-05-28.