Preheat oven to 350 degrees
Cut tops off peppers and place standing in a baking dish
In a skillet over medium heat, heat oil and add onions, zucchini, bell pepper, and ground turkey until turkey is browned.
Mix in tomatoes, tomato paste, Italian seasoning, garlic powder, salt and pepper
Scoop mixture into peppers until it is just over the top of the pepper.
combine remaining tomato paste with juice from the canned tomatoes and add water until thin enough to pour in pan around peppers. Pour into pan.
Place in oven and cook for 20 mins.