Preheat the oven to 375°F (190°C). Line a baking sheet with parchment paper for easy cleanup (optional).
Open the cans of crescent roll dough and unroll the dough. Divide it into the individual triangles along the pre-scored lines.
Take each triangle and cut it into smaller triangles if you want smaller pieces, or use them as they are for larger bites.
Place one mini sausage at the wide end of each triangle.
Roll the dough around the sausage, starting from the wide end and rolling towards the narrow end. Ensure the sausage is well wrapped.
Place the rolled sausages on the prepared baking sheet.
Brush the tops of the wrapped sausages with the beaten egg for a golden finish.
Sprinkle poppy seeds on top for added flavor and crunch (optional).
Bake in the preheated oven for 12-15 minutes or until the dough is golden brown and cooked through.
Remove from the oven and let cool slightly before serving.