Quorn's Fishless Fillets will be available in two varieties - Breaded and Battered - from March. They will retail in a two-pack RRP £2.99.
They will join the company's current vegan line-up, which makes up 12 percent of Quorn's range, and features sausages, spicy 'chicken' burgers, and deli slices among other products.
"For the first time ever, more than half of all UK consumers are reducing their meat consumption and 57 percent of people believe that reducing meat benefits the environment," Alex Glen, Quorn Marketing Director, said.
"There's never been a better opportunity for convenience retailers to embrace meat-free products and promote their benefits."
Quorn has been expanding both its vegan and vegetarian ranges in recent times, trying to tap into the growing flexitarian market. Last year it announced it has opened the 'world's biggest and most advanced' meat alternative factory in the UK.
"We are investing in these uncertain times because we see long-term growth in the sector, particularly in the US, Australia and Asia," said Quorn Foods Chief Executive Kevin Brennan.
"We are the world leader in meat alternatives and have seen our business grow by 16 percent in the last year. We see decades of growth ahead of us as consumers respond to growing environmental concerns around meat production. Our business is growing very rapidly, we've opened the biggest, fastest and most advanced production facility in the world."