Dishes like meatballs, sausage casserole and cottage pie are the favourite among people as they are easily available as packaged food.
"The research shows we're a nation of makers and fakers when it comes to evening meals. For the majority of British adults, life is one big juggling act and often the thought of having to prepare a meal from the bare ingredients after a really long day can be an unwelcome one," said Andrew Mann of Co-operative Food.
"Who wants to always be spending hours in the kitchen cooking on a Saturday night when you could be settling down in front of the TV with the family and enjoying 'The X Factor'," he added.