examples:
peppers: paprika, cayenne, hot sauce
sunflower seeds
strawberries
avocado
quinoa
raspberries
blackberries
blueberries
cherries
tomato
pineapple
guava
coffee
these items make up a hugely central part of the various dishes.
other items like oranges and bananas are not indigenous to the americas but are major crops in the hemisphere.
you might consequently call this the "americas diet" and note it tries to take advantage of the higher nutritional value of crops that have been domesticated most recently.