This recommendation is from Bakery Manis, where you will find tons of great Hawaii dining suggestions for vegan and vegan-friendly. See personal details of her Oahu listings here.
This is an all-vegan restaurant with an emphasis on "home cooking."
According to Bakery Manis, "hands down, the best spelt vegan muffins i have ever had- better than my own!" But there menu offers more than muffins, they have sandwiches, salads, healthy sweets, and coffee/tea drinks.
Location: 2239 S. King St. Honolulu, HI