The taco interlude is the period during a Taco Bell feast in which one ingests the obligatory plain taco that comes with the value meal before continuing with the other flashy menu items one has ordered. A taco interlude to a fast food eater is as a palate cleansing to a fine wine taster.
"Dude, did you tear through that crunch wrap supreme already? You are a machine."
"No no, my friend, it's still here. I'm just taking a taco interlude."
"Ah. You are wise in the ways of Taco Bell."