Preheat your oven to 375°F (190°C).
In a mixing bowl, combine the shredded chicken, cream cheese, cheddar cheese, garlic powder, onion powder, milk, salt, and pepper.
Unroll the crescent roll dough and separate it into triangles on a flat surface.
Spoon a generous amount of the chicken filling onto the wide end of each triangle.
Roll up each triangle, starting from the wide end and tucking in the sides as you go.
Place the rolled pillows on a baking sheet lined with parchment paper.
Bake in the preheated oven for 15-20 minutes, or until golden brown.
Allow the pillows to cool slightly before serving.