Food historian Lois Ellen Frank calls potatoes, tomatoes, corn, beans, squash, chili, cacao, and vanilla the "magic eight" ingredients that were found and used only in the Americas before 1492 and were taken via the Columbian Exchange back to the Old World, dramatically transforming the cuisine there. According to Frank,
If we deconstruct that these foods were inherently native, then that means that the Italians didn't have the tomato, the Irish didn't have the potato, half the British National Dish—Fish and Chips—didn't exist. The Russians didn't have the potato, nor did they have vodka from the potato. There were no chiles in any Asian cuisine anywhere in the world, nor were there any chiles in any East Indian cuisine dishes, including curries. And the French had no confection using either vanilla or chocolate. So the Old World was a completely different place.
Spanish patatas bravas are potatoes served with a red sauce made with tomatoes and chilis. Could patatas bravas have existed in 1490?
No, patatas bravas could not have existed in 1490. This is because in 1490 the Americas had not yet been visited by Europeans, and so Spaniards didn't have access to the potatoes, tomatoes or chilis present in the dish, because those plants are all from the Americas originally.