Preheat oven to 400 degrees. Lightly spray a 9x13 baking dish with non-stick cooking spray; set aside.
Cook pasta according to package directions. Drain, run under cold water for a few seconds to stop the cooking process. Set aside.
In a large skillet, add the ground turkey, Italian seasoning, onions and bell peppers. Cook for 8-10 minutes, stirring and breaking up meat as you go. Add garlic and cook 1 more minute. Drain any excess oil and return to skillet.
Stir in tomatoes, spaghetti sauce and basil (you could stir in some extra pepperoni if you'd like). Mix in cooled pasta.
Spoon mixture into prepared baking dish.
Sprinkle with mozzarella then layer pepperoni on top.
Bake 10 minutes, or until cheese is melted and bubbly.
Serve and enjoy!