Prepare the Cheese Mixture : Grate the cheddar cheese and set aside. In a medium bowl, mix the cream cheese and grated cheddar until smooth and well combined. For extra smoothness, use a food processor. Spoon the mixture into a disposable decorating bag fitted with a round or star-shaped decorating tip.

Assemble the “Pumpkin Pies” : Lay out the Chicken in a Biskit crackers to act as the "pie crust" base. Pipe a dollop of the cheese mixture onto the center of each cracker in a smooth, circular motion, mimicking a pumpkin pie filling. Place a Triscuit triangle thin at the edge of the cheese dollop to resemble a slice of pie crust or garnish.

Final Touches : Use additional decorating tips for detailed designs, such as swirls or a "whipped cream" effect on top of the cheese. Arrange the mini "pumpkin pies" on a serving platter.