The difference here is ingredient vs. dish. Native Americans were eating boiled potatoes and potatoes in stew (and maybe roasted or baked potatoes). There was

The difference here is ingredient vs. dish. Native Americans were eating boiled potatoes and potatoes in stew (and maybe roasted or baked potatoes). There was no dairy to make mashed potatoes and no abundance of cooking oil to make fried potatoes. Everything else comes after colonization. Americans were also eating flint corn and sweet corn (although it was much less sweet than modern sweet corn). Flour corn was mesoamerican and dent corn was made by colonizers. So you’d get corn in boiled and in stews and maybe roasted, and you’d get jonnycakes (although they wouldn’t be like modern jonnycakes), but most of the corn dishes we eat today are based off of mesoamerican cuisine (save for cornbread, which is probably inspired by Jonnycakes but is made with dent corn as well as wheat flour and chemical leavening). So we have a lot of American Indian ingredients and even some dishes inspired by American Indian dishes, but nothing which is culturally distinct as American Indian food.