@OmSigDAVID,
I would serve a mixture of traditionally Jewish and Italian dishes (which is what I was exposed to growing up in New Jersey and really love), and some traditionally southern stuff along with tex/mex (if I could get my mom to come work there and cook it).
Breakfast-
pancakes, waffles, (plain and pecan), omellettes (especially cream cheese and smoked salmon), eggs, bacon, sausage (links and patties), home fries, biscuits, gravy, bagels of all sorts with white fish salad available (I even eat bagels toasted with onion gravy on them - that is AWESOME- not traditionally eaten by any culture I know of but I love it), and I'd throw oatmeal on there because I love it and in case any moms with children came in.
Lunch/Dinner: sandwiches:turkey club, reubens, grilled cheese, etc.
all different types of soup - chicken noodle, tomato and red pepper, lentil, matzoh ball, potato and onion, carrot and corriander, etc., etc.
Chicken enchiladas, chile, tamales, tacos in soft and hard shells,
I'd also have chile dogs - you could use your chile on those,
chicken pot pie, spaghetti with marinara sauce and sweet italian sausage, lasagne, you could serve the sweet italian sausages as sandwiches on good hard rolls...
stuffed cabbage
pot roast with gravy, potatoes and green beans
Dessert: chocolate cake, cherry and apple pie, peach cobbler, hot fudge brownie sundaes.
Drinks: ICED TEA!
(These are all the things I love to eat when I go to America and miss when I'm here).
I'd call my American restaurant THE UNITED STATES OF DELICIOUSNESS... (get it - that sort of incorporates the fact that in the US you have so many different types of cultures and thus foods...)