Heat oil in a large saucepan over medium-high heat.

Add ground chicken, sausage, and 1 teaspoon of chili powder.

Cook for 5 to 7 minutes, or until chicken is no longer pink.

Remove meat mixture from the saucepan and set aside.

Add onion, pepper, and garlic to the saucepan.

Cook for 5 minutes, or until tender, stirring occasionally.

Add cumin, paprika, salt, and the remaining 1 teaspoon of chili powder.

Cook for 1 to 2 minutes more, or until spices are fragrant.

Return the cooked meat mixture to the saucepan.

Stir in crushed tomatoes, beans, and undrained tomatoes.

Bring to a boil.

Reduce heat and simmer for 10 minutes, or until the mixture is hot.

Top each serving with sour cream and parsley, if desired.