For a period of about a year (1992-3), Rocky & Bullwinkle were licensed for use in commercials for Taco Bell. In each case, the iconic duo thwarted hamburgers hustlers Boris Badenov & Natasha Fatale.
Seeing as how Bill Scott & Paul Frees (Bullwinkle & Boris, respectively) passed away in the 80's, I don't know who's filling in for them here, working with June Foray.
Hamburgers being boring? Seeing as how I enjoy both hamburgers & tacos, I disagree.