Preheat the Oven: Preheat your oven to 375°F (190°C).
Prepare the Pizza Base: In an oven-safe bowl or small baking dish, add the shredded chicken, marinara sauce, and spices (oregano, garlic powder, and red pepper flakes). Mix it all together until well combined.
Layer the Cheese: Sprinkle a generous layer of shredded mozzarella cheese over the chicken and sauce mixture. Top with parmesan cheese for extra flavor and a golden crust-like finish.
Add Toppings: Place your diced green bell pepper, red onion, and optional pepperoni slices on top. These will add extra texture and flavor to your pizza bowl.
Bake: Place the bowl in the preheated oven and bake for 10-15 minutes, or until the cheese is melted and bubbly, and the edges are lightly golden.
Garnish and Serve: Remove the pizza bowl from the oven and let it cool for a minute. Garnish with fresh basil, if desired.
Enjoy! Serve your low-carb crustless pizza bowl hot, and enjoy a guilt-free pizza experience!