Dawn Fresh Foods is part of the Queally Group in Ireland.
Emile Tissot produces frozen ready meals for the foodservice sector at a factory in Telford, Shropshire. Its sales in the year ended 31 March 2004 were £9.5m and it employs more than 100 people, who will transfer to Dawn Fresh Foods.
Northern Foods said the disposal was part of its plan to align itself more closely with some of the fastest growing sectors of the food market, and to increase its focus on leading retailers.
It follows the disposal of Batchelors and Beck Smith earlier this year and Fox's Confectionery in 2003, when the Group also acquired the remaining 60% of Solway Foods and the San Marco frozen pizza brand.