Preheat oven to 400 degrees F.
Wash sweet potatoes and pierce the skins several times with a fork. Place them on foil lined baking sheet.
Bake sweet potatoes for 60-90 minutes or until soft.
While sweet potatoes are baking, add olive oil and ground turkey to a large pot.
Cook turkey over medium heat until cooked through, about 5-8 minutes.
Once the turkey has browned, add onion and red pepper. Cook for another 5 minutes, stirring occasionally.
Add garlic and cook for 1-2 minutes.
Next add the drained kidney beans, tomato sauce, chili powder, salt and water.
Reduce heat and simmer for 10-15 minutes.
Once the sweet potatoes have finished baking, slice each one open and gently mash the insides.
Place about 1/2 cup of chili over each potato and then top with cheese.
Place potatoes back in oven for 2-4 minutes to melt cheese.
Add sour cream, cheese and green onion on top before serving.