Heat olive oil in a large pot over medium heat.
Add chopped onion and garlic; sauté until soft.
Stir in ground turkey and cook until browned.
Add crushed tomatoes, water, and mashed kidney beans.
Mix in chili powder, paprika, oregano, cayenne, cumin, salt, and pepper.
Bring to a boil, then reduce heat and simmer for 30 minutes.
Stir occasionally, letting flavors blend and chili thicken.
Serve hot with toppings like cheese, sour cream, or green onions.