Cook the rice: Rinse 1 cup long-grain rice until the water runs clear.
Add to a pot with 2 cups water and a pinch of salt. Bring to a boil, reduce to low, cover, and cook 15 minutes. Turn off heat and let steam 5 minutes, then fluff.
Prep the sausage and veg: Slice 12–14 ounces of smoked sausage into coins.
Dice 1 onion, 1 bell pepper, and 2 ribs celery. Mince 3–4 garlic cloves.
Brown the sausage: Heat 1 tablespoon oil in a large pot over medium heat. Add sausage and cook until well browned, 4–6 minutes.
Remove to a plate, leaving the flavorful drippings in the pot.
Sauté the aromatics: Add onion, bell pepper, and celery with a pinch of salt. Cook, stirring, until softened and lightly caramelized, about 6–8 minutes. Stir in garlic and cook 30 seconds.
Season: Add 1 teaspoon smoked paprika, 1/2 teaspoon cayenne (or to taste), 1 teaspoon dried thyme, 1 teaspoon dried oregano, and several grinds of black pepper.
Toast the spices for 30 seconds.
Add beans and liquid: If using canned, drain and rinse 2–3 cans red kidney beans. Add to the pot with 2 cups low-sodium chicken broth (or water), 1–2 bay leaves, and the browned sausage. If you prefer a creamier texture, mash a portion of the beans with the back of a spoon as they simmer.
Simmer low and slow: Bring to a gentle simmer, then cook uncovered for 20–30 minutes, stirring occasionally.
Add more broth if it gets too thick. Taste and adjust salt.
Optional flavor boosts: Stir in 1–2 teaspoons hot sauce, a few drops of liquid smoke, or 1 teaspoon Worcestershire for extra depth.
Finish and garnish: Remove bay leaves. Stir in chopped green onions and parsley.
The beans should be creamy and spoonable, not soupy.
Serve: Spoon the red beans and sausage over warm rice. Add extra hot sauce if you like it spicy.