50 percent of salads and a quarter of fruit and veg is dumped every day in Ireland.
Potatoes are the most wasted vegetable and bananas and apples the most wasted fruit - according to Compass Group Ireland.
The food service company is marking Stop Food Waste Day in partnership with 99 other businesses across the country.
Irish people are dumping 80kg of food waste a year with 20 percent of bread and baked goods and 10 percent of meat going in the bin.
Launched by Compass Group USA in 2017, Stop Food Waste Day is an annual event to raise awareness of the issue of food waste and encourage the industry, from farm to fork, to reduce the amount of food thrown away.
Compass Group Ireland has committed to reducing its food waste by 20% by 2025.
Chris Chidley, Managing Director, Compass Group Ireland, said: “Food waste is a serious problem for the world today, and as one of the leaders in food service, we are determined to play our part in driving change. Working with our suppliers, partners, clients and consumers in Ireland, we are focused on educating our teams and our customers on how they can play their part in cutting food waste, today and every day.”