Vegan snag-free sausage rolls

Name: Vegan snag-free sausage rolls
Prep time: 30 min
Cook time: 30 min
Total time: 1 h
Cuisine: American
Ingredients: 750g sweet potato, peeled, cut into 5cm pieces; 18.20 gm olive oil; 1 brown onion, finely chopped; 2 garlic cloves, crushed; 2 star anise; 40.00 ml tamari, plus extra, to serve; 35g (1/2 cup) fresh breadcrumbs; 70g (1/2 cup) pecans, finely chopped, plus extra chopped pecans, to serve; 82.50 ml chopped fresh coriander; 27.00 gm maple syrup; 12 sheets filo pastry; Olive oil spray