Unroll one tube of Pillsbury Crescents® into one long rectangle. Use a rolling pin to roll the seams together and lengthen the dough a little bit. Cut 24 squares with a pizza cutter.
Place one square inside each cup of a mini muffin pan. It’s okay if some of the seams come apart, they will most likely cook together. They don’t have to touch the bottom either. I like to leave a little bit of the dough hanging out of the cup for easy removal after baking.
Remove any rind from the Brie cheese and cut 48 square-ish pieces. Place a piece of cheese in the center of each crescent cup. Save the remaining 24 pieces for the second tube of crescent dough.
Spoon some whole cranberry sauce on top of the Brie. Maybe a rounded teaspoonful. You don’t have to be exact, but don’t overfill them.
Top the cranberry sauce with chopped pecan pieces, saving half for the second batch of Cranberry Brie Bites.
Bake at 375 degrees Fahrenheit for 10 to 15 minutes, until golden brown. Serve immediately using a spoon to remove the cups from their mold. Repeat with remaining ingredients.