Break up ½ the pork into bite-size pieces, discarding banana leaf (save remaining for lunch tomorrow); heat a skillet over med-high + sear pieces 3-4 min, turning halfway through, until meat is crisped + hot

Meanwhile, tear corner of grains to vent + heat in microwave 90 sec (careful—it'll be hot!); if using a skillet, warm 2 min with 1 tbsp water

Stack 4 tortillas on a plate + wrap with a damp paper towel; microwave 15-30 sec or until warm + soft

Divide pork among tacos then dollop each with 1 tbsp sour cream; divide to plates with rice on the side—looks good!