- Preheat oven to 350ºF and grease a standard 12 muffin tin with cooking spray. Unroll pastry sheet and slice into 3 equal strips. Slice each strip into 4 squares to create 12 squares. Gently stretch into larger squares and press into muffin tins. Prick the bottom of each pastry square a couple times with a fork. Bake for 20-24 minutes.
- In the meantime, heat cooking oil over medium-high heat in a medium skillet. Blot chicken pieces dry with paper towel and add to hot skillet. Brown chicken for 6 minutes, stirring occasionally. Reduce heat to medium-low and stir in carrots, edamame, and teriyaki takumi. Cook 4 minutes longer. Turn heat off and stir in cabbage.
- Remove pastry cups from oven and cool 5 minutes before transferring to a serving plate. Spoon teriyaki chicken mixture into cups, sprinkle with sesame seeds and green onion, and serve warm.