M&S Food has agreed a collaboration with Costa Coffee to supply the coffee shop's outlets across the UK.
The new proposition - Costa Coffee Now Serving M&S Food - will give Costa customers the chance to buy more than 30 M&S Food products, including salads, sandwiches, hot meal boxes and a range of other items, in over 2,500 locations.
The two sides said the partnership means Costa "can provide an even greater range of quality, great-value food for all customers' breakfast, lunch and break-time needs".
A complete list of available food products will be released ahead of the full launch next year, but M&S said it would include a range of products including sandwiches, salads, and options from the Plant Kitchen and Made Without Brands ranges.
Neil Lake, managing director at Costa Coffee UK&I, said: “Following the recent launch of our amazing new festive menu, we are delighted to bring further festive cheer by announcing a new food collaboration with M&S Food, launching next year.
"As we continue to craft new coffee experiences across our stores, we are bringing together two of the very best brands in a UK first to launch the Costa Coffee Now Serving M&S Food range. This collaboration with M&S Food will build on our existing food range and help us fulfil our ambition to become the first choice for customers buying food and coffee on-the-go.
"We’ll use our joint expertise to develop a food experience of the highest quality, freshness and value – all served with a perfectly crafted Costa coffee.”
Stuart Machin, chief operating officer and M&S Food managing director, added: “M&S Food is famous for great quality food on-the-go at fantastic value. This collaboration gives many more customers the opportunity to enjoy our wide range of delicious sandwiches, salads and snacks in over 2,500 locations across the UK – not just on the high street but in neighbourhood locations and retail parks.
“Bringing together delicious, great-quality M&S Food and the nation’s largest chain of coffee shops is great for customers as it extends our reach and supports our strategy of making M&S more relevant, more often for families.”