Heat olive oil in a large pot over medium heat.
Add diced onion and sauté until translucent, about 5 minutes.
Add minced garlic and diced red bell pepper; cook for another 2-3 minutes until fragrant and softened.
Add ground turkey and cook until browned, breaking it up with a spoon, about 7-8 minutes.
Stir in chili powder, ground cumin, smoked paprika, salt, and pepper; cook for 1 minute to toast the spices.
Pour in pumpkin puree, diced tomatoes with their juice, kidney beans, and chicken broth; stir to combine.
Bring the chili to a gentle boil, then reduce heat and simmer uncovered for 25 minutes, stirring occasionally.
Stir in the heavy cream and continue to simmer for 5 more minutes until heated through and creamy.
Taste and adjust seasoning if needed.
Serve hot with your favorite chili toppings like shredded cheese, sour cream, or fresh cilantro.