Preheat oven to 375°F (190°C). Thaw frozen vegetables completely (defrost in microwave if desired).
Mix together soup and sour cream in a medium bowl. Stir in poultry seasoning and pepper. Then mix in the chicken and vegetables.
Lightly flour your work surface, then unroll crescent dough. Pinch together diagonal lines. Cut into 8 squares.
Spray 8 regular size muffin cups with nonstick cooking spray. Place a crescent square into each muffin cup, pressing down so just the corners extend above the top of the muffin pan.
Spoon chicken mixture into each crescent lined muffin cup (about ¼ cup each).
Bake 18-20 minutes until crescents are deep golden brown.
Wait about 5 minutes before removing mini pot pies from the muffin tin. Serve immediately.
Notes
For a cheesy touch, sprinkle shredded cheddar cheese over the top of the cooked pot pies and return them to the oven for a minute or two until cheese is melted.