That's the finding of a survey from California Pizza Kitchen, during National Pizza Month in October.

Found the story on usatoday.com

21 per cent of people surveyed said pizza is their favorite food.
Steak came in 2nd at 16 per cent.
13 per cent of people preferred hamburgers.
Tacos came in 4th at 11 per cent.
Pasta was next at 11 per cent.
Salad was Americas favorite at 9 per cent.
Sushi came in 7th at 6 per cent (this one surprises me)
Last on the list is Mac and Cheese at 4 per cent.