What did soldiers eat during D-day?

Answer 1

Combat rations which were known as C-Rations. An example might be canned ham and beans, canned apricots, crackers with peanut butter, and a pouch containing; gum, hard candy, instant coffee, toilet paper, salt, pepper, napkin, plastic spoon, sugar, matches, and a package of four cigarettes.

Answer 2

Those who had time and remembered to eat ate standard field rations. These were meals in a box - C rations, D rations and K rations. The food was actually in cans and the cans were in a small box. The cans were dark green and had painted on them with black paint what was in them. There were different entrees, and some weren't bad. Some were pretty rough. The C ration box was intended for one meal for one man. Each came with an ingenious little can opener, basically just a curved piece of metal you could rock around the top of the cans to get them open. There was powdered lemonade and instant coffee, and men would tear up the cardboard box and make a little fire to heat water in their canteen cup. There was a four-pack of cigarettes in the C rations, not four packs but a little box with four cigarettes. There was a book of matches with a dark green cover. There was usually some gum or a piece of candy. There was a little flat pack of toilet paper in a green wrapper.