What are traditional foods

It depends on what culture you are talking about. But basically, traditional foods are those foods which are common to find at a traditional meal. For example, here is a website on traditional Chinese new year food.

This web site features traditional Irish foods.

For me the traditional food is the one that does not have much spices added!

I would say traditionl foods would be the foods that you grew up on. Those favorite dishes your mom and grandma would wip up. I come from an Irish household in Florida and my mom would cook everything from Indian to Mexican to Chinese. Its all about what is a tradition to you!