Cook the filling

• Place the ground beef in a pan, add the onion and sauté until golden brown.
• Season with red pepper flakes, black pepper and salt.
• Let the filling cool completely.

Prepare the phyllo triangles

• Cut the phyllo dough into triangles, making 16 pieces in total.

Fill and roll

• Place some ground beef filling on each triangle, then add the grated cheddar cheese.
• Roll and wrap each triangle tightly.

Prepare the coating

• Whisk the milk, vegetable oil and egg together in a bowl.
• Dip each roll into the milk mixture, then coat it in breadcrumbs.

Bake

• Arrange the rolls on a baking tray.
• Bake in a preheated oven at 200 °C for 30 minutes until golden.