The classic ham sandwich still reigns supreme when it comes to desk workers lunch time choices, according to a new survey from Deliveroo.

The survey exposed the tendency for millions of Irish workers to fall into a monotonous cycle when it comes to their office lunches.

Seven in ten of the 1,500 workers polled said they were stuck in a rut with their office lunches, with 42 percent saying eating repetitive meals for lunch is a habit of theirs, eating exactly the same thing day after day.

To give Irish workers the chance to upgrade their lunches for free from soggy sandwiches to restaurant quality food, Deliveroo is launching a Lame Lunch Amnesty this Wednesday in Ireland.

Office workers simply tweet a picture of their sad looking lunches to @Deliveroo_IE between 11:00am-13:00pm using the hashtag #LameLunch for the chance of getting a free lunch from Deliveroo.

According to the survey, in the poularity stakes ham sambos were followed by another classic cheese and tuna mayonnaise sandwiches.

Irish workers have also admitted to experiencing food envy in the workplace, with four in ten workers saying they were jealous of their colleagues who had interesting and varied lunches.

Lunchtime meals prove a hot topic of conversation among the workforce, with nearly four in ten respondents saying that they discuss what everybody is eating for lunch with their colleagues. The research also found that the average worker discusses lunch options for around 13 minutes per day.

The top 25 most popular lunches for Irish office workers are as follows:

1. Ham sandwich
2. Cheese sandwich
3. Tuna mayo sandwich
4. Egg mayo sandwich
5. Superfood salad
6. Spicy chicken wrap
7. Jacket potato with filling
8. Fish and chips
9. Leftover pasta dish
10. Caesar salad
11. Pasty
12. Prawn sandwich
13. Tuna nicoise salad
14. Tomato soup and roll
15. Microwave noodles
16. Just toast
17. Carrot and coriander soup and roll
18. Coronation chicken baguette
19. Bacon and Brie baguette
20. Minestrone soup and roll
21. Jumbo sausage roll
22. Goats cheese and cous cous salad
23. Curry
24. Beans on toast
25. Duck wrap