There are lots of answers to that, as people eat different things. Common things that could be used for different meals would be meat such as beef, pork or lamb and vegetables like potatoes, carrots, cabbage etc. Chicken and turkey would be common and people also eat a lot of fish.
Corned Beef and Cabbage is considered a traditional Irish meal.
Irish Stew is probably the meal most associated with Ireland. Potatoes are strongly associated with Ireland.
Irish Stew
Spains most famous meal is tapas... as a side dish and the main course is paellera
Making Guiness
Manuscripts.
Eddie Macken or Kian O'Connor
The most famous massive Irish immigration to the US was around the 1840s due to the major potato famine in Ireland.
The most famous meal in El Salvador is pupusas. It's a delicious meal with a El Salvadorian hint.
The Irish currency is the Euro, it is common to most EU countries, it has pictures of famous buildings from around europe, not people
The most famous ship built at the Harland and Wolff shipyard was the Titanic.
three Irish drinks are Guinness,Irish coffee, Irish rum