Line an 8x8-inch pan with parchment paper.
In a large bowl, stir together the nut butter, honey, vanilla, and salt until smooth.
Stir in the oats until fully coated, then fold in the mini chocolate chips.
Firmly press the mixture into the prepared pan and refrigerate for 1-2 hours until firm.
Cut into bars and store in an airtight container for up to a week.