Fry chopped onion and garlic in butter and season. Mix this under the minced meat with an egg and breadcrumbs. Roll sausages out of it. Roll the sausages in puff pastry and close this with egg yolk. Brush the rolls with a mixture of egg yolks and milk and let them bake for 20 minutes in oven at 200°C. You can also use homemade frikandels (curry sausages) as a filling. Click here for the recipe. The sandwiches on photo were made with that fricandel filling.

Sausage rolls - Worstenbroodjes  

puff pastry minced beef and pork shallot garlic egg
It is mainly in the province of Antwerp, the tradition to eat sausage rolls and apple dumplings on 'Lost Monday'. The Monday after the first Sunday after Epiphany. Although the historical origin has apparently not yet been fully clarified, one thing is certain. On that day the workers did not work. They ate, drank and partied.  But not working also ment no wage. That's why it was a "lost" Monday ...
egg yolk milk bread-crumbs butter pepper and salt
A Recipe Guide For The Amateur Chef Belgian Cuisine

Sausage rolls -

Worstenbroodjes  

puff pastry minced beef and pork shallot garlic egg
Fry chopped onion and garlic in butter and season. Mix this under the minced meat with an egg and breadcrumbs. Roll sausages out of it. Roll the sausages in puff pastry and close this with egg yolk. Brush the rolls with a mixture of egg yolks and milk and let them bake for 20 minutes in oven at 200°C. You can also use homemade frikandels (curry sausages) as a filling. Click here for the recipe. The sandwiches on photo were made with that fricandel filling.
It is mainly in the province of Antwerp, the tradition to eat sausage rolls and apple dumplings on 'Lost Monday'. The Monday after the first Sunday after Epiphany. Although the historical origin has apparently not yet been fully clarified, one thing is certain. On that day the workers did not work. They ate, drank and partied.  But not working also ment no wage. That's why it was a "lost" Monday ...
a recipe guide for the amateur chef Belgian Cuisine