Form the Cones
Roll: Take a flatbread half and roll it tightly into a cone shape, ensuring the bottom tip is closed.
Secure: Use a toothpick to pin the outer flap to the body of the cone so it doesn't unroll.
The Crisp Factor
Method A (Bake): Preheat oven to 350°F (180°C). Brush the cones lightly with oil and bake for 8–10 minutes until golden and rigid.
Method B (Fry): Heat oil in a pan and deep-fry the cones for 1–2 minutes until golden brown. Drain on a paper towel.
Mix the Filling
Combine: In a large bowl, mix the shredded chicken, flaked tuna, corn, and mushrooms.
Dress: Stir in the Greek yogurt and mayonnaise until the mixture is creamy and well-incorporated.
The Final Crunch & Assembly
Timing is Everything: Just seconds before serving, stir the crushed potato chips into the creamy mixture.
Fill: Remove the toothpicks from the crispy cones. Spoon the filling into each cone until full.
Serve: Serve immediately while the shells are warm and the chips inside are still crunchy.