01 - Heat vegetable oil in a large Dutch oven or soup pot over medium heat. Add bacon if using and cook until crisp. Remove bacon and set aside, leaving rendered fat in the pot.
02 - Add sliced sausage to the pot and cook until browned on all sides. Remove sausage and set aside with the bacon.
03 - Add onion, bell pepper, and celery to the pot. Sauté for 5 to 6 minutes until softened. Add minced garlic and cook for 1 minute until fragrant.
04 - Return sausage and bacon to the pot. Add red kidney beans, broth, bay leaf, thyme, smoked paprika, cayenne pepper, oregano, black pepper, and salt. Stir thoroughly to combine all ingredients.
05 - Bring mixture to a boil, then reduce heat and simmer uncovered for 45 minutes. Stir occasionally and add a splash of water or broth if soup becomes too thick.
06 - While soup simmers, rinse rice under cold water until water runs clear. Combine rice, water, and salt in a saucepan. Bring to a boil, reduce heat, cover, and simmer for 15 minutes or until rice is tender. Remove from heat and let steam covered for 5 minutes. Fluff with a fork before serving.
07 - Remove bay leaf from soup. Stir in chopped fresh parsley. Taste and adjust seasoning with additional salt or cayenne pepper as needed.
08 - Ladle hot soup into bowls and top each serving with a scoop of fluffy rice. Garnish with additional fresh parsley if desired.