Smoked Sausage with back

1 lb dried navy beans , rinsed 1 tablespoon olive oil 1 lb smoked pork sausage, sliced into 1/2-inch pieces 2 cups chopped onions 1 1/2 tablespoons minced[...]

2 lbs smoked beef sausage, kielbasa or 2 lbs Polish sausage , sliced 1 tablespoon butter 2 medium sweet onions , cut in large chunks 5 -6 celery ribs , sliced[...]