Vegetarian sausage rolls with spelt pastry

Spelt pastry

• 200 g unsalted butter, cut into small pieces (1-2 cm) and frozen
• 200 g wholemeal spelt flour, plus extra to dust
• 90 g chilled water
• ½ tsp sea salt

Filling

• 180 g brown onion, cut into halves
• 1 tbsp dried oregano
• 100 g walnuts or pepitas
• 90 g rolled oats
• 3 eggs
• 150 g feta cheese, cut into pieces (3 cm)
• 1 tbsp soy sauce
• 50 g breadcrumbs

Assembly

• wholemeal spelt flour, to dust
• milk, to brush
• sesame seeds, to sprinkle (optional)