No injuries were reported.
Crews were dispatched to Mad Fish restaurant at 1580 Trolley Rd. around 5:30 a.m. for reports of smoke in the area.
Upon arrival, smoke was observed coming from the restaurant and crews upgraded the call to a structure fire.
Firefighters forced entry into the building and found fire in the kitchen had activated the sprinkler system.
In addition to damage to Mad Fish, smoke spread to adjoining businesses.
Fire crews are expected to be on scene Tuesday morning with one lane of Trolley Road closed.
The cause will be investigated, fire officials said.
Mad Fish is located in the Ridgeway Plaza.