This happened on February 15th, but the police report just leaked out.  In Port St. Lucie, Florida, 36-year-old Erik Brown was arrested for assaulting his 16-year-old brother-in-law . . . with a TACO BELL BURRITO.

Erik is married to the boy's older sister.  And back on the 15th, after the family ordered Taco Bell, the boy told his mother to bring him the burrito.

Erik thought the boy was being disrespectful . . . and threw the burrito at his face, quote, "with force."  When the cops were talking to the boy afterward, they say he, quote, "had burrito cheese, sauce, and meat all over his clothing and face."

Erik was arrested for misdemeanor battery.  The police report didn't specify exactly WHICH Taco Bell burrito was involved.

Here's Erik's mug shot.

smoking gun