The company commissioned professional food artist Prudence Staite to create the four-foot piece, made up of 2.5kg of roast potatoes, 500g of carrots, 400g of garden peas, 3kg of cauliflower, 46 Yorkshire puddings, 2.5kg of meat and a litre of gravy.
Samuel Johnson, general manager at Hungry Horse pub the Magic Roundabout, in Andover, Hampshire, told the Andover Advertiser: "We wanted to commemorate his return to earth with a gastronomical memento to celebrate his achievements."
The Magic Roundabout will also offer free Sunday roast burritos to the first 10 guests who say the word "gastronaut" when ordering their food on Sunday 26 June between 3pm and 4pm.
Free roast dinners
"It's been so exciting to follow Tim's journey over the past six months and to see how he has become an inspiration for adults and children of all ages," said Johnson, adding that Peake and his family would be offered free roast dinners for life at the pub once he returned to earth.
"We're big fans of the traditional roast dinner here at the Magic Roundabout, so it was great to hear that it was also one of Tim's all-time favourite meals."