Position your oven rack in the middle and preheat to 400°F. Line a 9x13 inch baking sheet (or similar rectangular pizza pan) with parchment paper or lightly oil it to prevent sticking. Having your pan ready before mixing the crust ensures you can work efficiently without the mixture sitting around.

In a large bowl, combine the ground chicken, cottage cheese, eggs, garlic powder, onion powder, oregano, dried basil, and black pepper. Mix thoroughly with your hands or a sturdy spoon until the ingredients are evenly distributed and the texture is uniform. The cottage cheese will break down slightly as you mix, helping to bind the chicken and create a cohesive crust. I like to get my hands in there and really work it together—it takes about 1-2 minutes but ensures no dry pockets of chicken.

Transfer the chicken mixture to your prepared pan and spread it evenly to about 1/4-inch thickness using a spatula or your hands (lightly wet your hands to prevent sticking). Press it into the corners and edges to create an even base. Bake at 400°F for 25 minutes until the crust is set and lightly browned on top. Remove from the oven and let cool for 10 minutes—this cooling period allows the crust to firm up slightly so the toppings don't sink through.

Spread the marinara sauce evenly over the cooled crust, leaving a small border around the edges if you prefer. Sprinkle the shredded mozzarella cheese over the sauce, then distribute the pepperoni and diced green peppers across the top. I like to layer the pepperoni slightly overlapping so every bite has a bit of it, and scatter the peppers evenly to avoid clumpy spots. Don't overload it—a moderate amount of toppings ensures everything cooks evenly and the crust stays sturdy.

Increase the oven temperature to 450°F and bake for 5 minutes until the cheese is fully melted and bubbly, with light golden spots appearing on top. Watch it carefully during this high-heat finish—the goal is melted, slightly browned cheese, not burnt edges. Remove from the oven and let cool for 10 minutes before slicing and serving. This final cooling helps the cheese set slightly so slices hold together cleanly.