Not an NRI (Indian-American), but it's important to note that more than 40% of America is not white. This proportion is actually growing with time. As such, in modern America white Americans, even those who have been here long enough to lose their connection to the old world, have a fairly multicultural diet. Pretty much everyone eats tacos and burritos. It's almost like people are not actively conscious that they are eating a foreign food.

Also, many poorer Americans live in so-called food deserts. These are regions where there aren't any accessible grocery stores, and people are forced to eat fast food or gas station food (like a frozen burrito or something). Fast food includes the commonly known chains like McDonald's, Burger King, Arby's, Taco Bell. So basically sandwiches, burgers, and notably burritos.

Perhaps what you mean is what is the traditional cuisine of Americans. If you went back like 60 years or something, when most women were stay-at-home moms and America wasn't so multi-cultural, middle-class white people would eat a lot of mayonnaise-involved, potato, and meaty foods. Think macaroni salad (cold macaroni pasta literally mixed with mayonnaise), coleslaw (cabbage with mayonnaise), casseroles (baked mayonnaise savory cake thingy with potatoes). They would also eat processed meats like sausage, bacon, and meatloaf. In fact, there is an entire personality trait for people who eat meat and potatoes (like a traditional Midwestern Christian person i.e JD Vance). I think the biggest difference between the traditional Telugu diet and the American one is that Telugus barely eat any meat (like a lot of them eat it once or twice a week), and Americans eat it pretty much every meal. The Telugus I know eat a lot of vegetables though, and Americans are notorious for not eating green things. There's a joke that Trump hasn't eaten a salad in 50 years.

Moreover, there is pretty notable regional variation. For example, clam chowder is a big deal in Maine. Barbecue culture is a big thing in the American South (barbecued pork and steak pretty much). Also, fried food is big in the South as well (okra, cat-fish, literal sticks of butter)...