1. Heat oil in large skillet over medium heat. Addonion, green bell pepper, yellow bell pepper, jalapeñopepper, and garlic. Cook and stir until tender.
2. Stir in turkey and cook until evenly brown,drain.
3. Mix in tomatoes and pumpkin. Stir in chilipowder, black pepper, cayenne pepper and salt to taste.
4. Reduce heat and simmer 10-15 minutes.
5. Add kidney beans and simmer another 5 minutes,until beans are hot.
6. Serve topped with shredded cheese and sourcream.