Preheat oven to 350°F. Lightly grease a baking sheet.
Stir together sausage, baking mix, cheese, mashed sweet potato, cinnamon, and salt in a large bowl.
Roll into 48 (1 ½-inch) balls, and place about 1 inch apart on prepared baking sheet.
Bake in preheated oven until sausage balls are cooked through and deep golden brown, about 20 minutes.
Stir together jelly and mustard in a small bowl until well blended. (If your jelly is too stiff to blend, microwave mixture at HIGH in 15-second increments until soft enough to stir.) Serve with sausage balls.
