Cut off the tops of the peppers remove the seeds, trim the bottoms to help them sit flat in the skillet and rinse thoroughly. In a large pan boil the peppers for 5 minutes, remove from water and turn upside down onto a paper towel to dry.
Preheat oven to 350 degrees.
In a large skillet add the olive oil, garlic and onion, sauté until tender. Add the turkey and brown until thoroughly cooked.
Add the crushed tomatoes, rice, Italian seasoning, salt, pepper and 1/2 cup of the shredded cheese and stir until blended.
Fill the peppers evenly with the mixture, place in a lightly greased 10 inch cast iron skillet. Bake uncovered for 25 to 30 minutes. Remove and add the remaining cheese to the top of peppers and bake for an additional 5 minutes or until the cheese is melted.