I’ve bought all the puff pastry! This appetizer conquered me at first bite!

I’ve bought all the puff pastry! This appetizer conquered me at first bite! Ingredients: puff pastry - 800 g (28.2 oz) for the filling: mustard - 20 g (0.7 oz) sausages - 12 pieces pressed cheese - 100 g (3.5 oz) eggs - 1 piece Tray size 38 X 42 cm (15 x 16.6 in) IN THE OVEN 180 °C (356 °F)/20 minutes