The 600-strong chain said frozen foods are popular with impulse and top-up shoppers.
Strong performers include ice cream, chips and pizza.
Keith Webb, acting managing director, said: “We have focused on a core range of competitively priced best sellers, in-store point of sale and promotions which have resulted in our strong performance within the frozen foods category.
“It is important for us to continue to provide shoppers with a choice of goods from brand leaders and also lesser known names so they have the freedom to shop within their budget.
“With household budgets tightening and frozen food being such a popular consumer staple, we recognised the demand for a range to fit in with people’s busy day to day to day lives. We are committed to providing our customers with products that offer good value for money and we plan to continue to develop our convenience offering over the coming 12 months.”
Its estate includes the Bargain Booze, Bargain Booze Plus, Select Convenience and Thorougoods fascias.