Tasty said it had disposed of four under-performing sites and undertaken a sale-and-leaseback of another.
Proceeds from the transactions totaled £2m and two further sites were expected to be disposed of in the coming months.
Tasty also said that recent trading has been in line with its muted expectations.
"The board has previously highlighted the difficult trading environment faced by the restaurant sector and expects a further deterioration in 2018, " it said.
Tasty also announced that finance director Timothy Cundy had resigned. He would serve out his three months' notice before leaving, it added.
"The company has identified a replacement with significant sector experience who will take over the finance function upon appointment," Tasty said, without naming the individual.
At 9:18am: (LON:TAST) Tasty PLC share price was -2.5p at 28.5p