Gather all ingredients.
Cook sausage in a 5-to 6-quart Dutch oven over medium heat until browned, 6 to 8 minutes; transfer to a bowl with a slotted spoon.
Place flour in a shallow plate; dredge chicken pieces in flour to coat.
Heat 1 tablespoon oil in Dutch oven; add chicken and cook until lightly browned, 4 to 5 minutes. Transfer chicken to the bowl with sausage.
Add remaining 1 tablespoon oil to the Dutch oven. Add mushrooms, onion, and bell peppers. Cook until tender, 6 to 8 minutes.
Stir in garlic and cook until fragrant, about 1 minute.
Stir in potatoes, white wine, chicken broth, brine, Italian seasoning, and salt; bring to a boil. Reduce heat to medium-low, cover, and simmer until potatoes are tender, about 10 minutes.
Add Peppadew peppers and browned chicken and sausage; cook and stir until heated through and sauce is slightly thickened, about 3 minutes.
Sprinkle with parsley before serving.