Chicken Pot Pie Poppers

Name: Chicken Pot Pie Poppers
Ingredients: 2 Tablespoons Olive Oil, Divided; 4 whole Carrots, Sliced Into Rounds That Are 1/4 Inch Thick; ½ whole Onion, Chopped; 1 cup Pearl Onions, Halved If Large; 2 cloves Garlic, Minced; 1 teaspoon Dried Thyme; 1 teaspoon Salt; 1 teaspoon Black Pepper; ½ sticks Butter; ⅓ cups Flour; 1-½ cup Chicken Stock; 1-½ cup Milk; 1 whole Cooked Rotisserie Chicken, Skin And Bones Removed, Cut Into 1 Inch Dice; 1-½ cup Peas; ½ cups Chopped Parsley; 2 boxes (14 To 17 Oz. Size) Puff Pastry Sheets Or Cups; 1 whole Egg, Beaten, For Egg Wash (optional)