Heat a Dutch oven over medium-high heat and add sausage. Cook, crumbling with a spoon until browned and fat has rendered out.
Add onion, bell pepper, and salt to the sausage and cook, stirring frequently, until vegetables have softened.
Add baked beans, apple pie filling, barbecue sauce, yellow mustard Worcestershire, hot sauce, and barbecue rub seasoning, and stir to combine. Use a spoon to break up the apple pieces a bit. Bring mixture to a simmer, reduce heat to medium-low, and cook 1 hour, stirring occasionally.
