Italian-American cuisine, including places like Buca di Beppo, are absolutely not in the same vein as Taco Bell or Chipotle. Italian-American cuisine is a unique part of a culture that arose organically from millions of Italian immigrants and their children in the United States. Taco Bell and Chipotle are culture-less money-making ventures with superficial ties to a foreign cuisine.
Tex Mex or Cajun cuisine would be a more apt comparisons.