Preheat your oven to 200°C (390°F) and line a baking tray with parchment paper so the chicken rolls don’t stick and cook evenly from all sides without burning on the bottom.
Place the chicken breasts on a clean cutting board and, if they are thick, carefully slice them horizontally to create thinner pieces. Use a meat mallet or rolling pin to gently pound them to an even thickness of about ½ inch so they cook evenly and are easier to roll.
Season both sides of each flattened chicken piece with garlic powder, paprika, salt, and black pepper, making sure the seasoning is evenly distributed for consistent flavor in every bite.
Lay the slices of turkey or beef deli meat on top of each chicken piece, then sprinkle an even layer of shredded cheese over the top, keeping the filling centered and not too close to the edges to prevent leakage during cooking.
Starting from one end, carefully roll each chicken piece tightly into a log shape, keeping the filling tucked inside. Secure each roll with toothpicks to ensure they hold their shape while cooking.
Crack the egg into a small bowl and beat it well until smooth. Dip each chicken roll into the egg mixture, turning it so all sides are fully coated, which helps the outer layer stick properly.
Place the coated rolls into breadcrumbs or almond flour and gently press to coat all sides evenly, creating a consistent outer layer that will turn crispy when baked.
Arrange the prepared chicken rolls on the lined baking tray, leaving a small gap between each roll so hot air can circulate properly and cook them evenly.
Lightly brush or drizzle olive oil over each roll to help achieve a golden, crispy exterior and enhance the overall flavor.
Place the tray in the preheated oven and bake for 25–30 minutes, or until the chicken is fully cooked through and the outside is golden brown and crisp. Flip the rolls halfway through baking if needed to ensure even browning on all sides.
Remove the chicken rolls from the oven and let them rest for about 5 minutes before slicing. This step allows the juices to redistribute inside the chicken and helps the cheese set slightly, giving you clean, perfect slices.