Preheat oven, electric stove 250 ° C, convection 200 ° C.
Cook frozen broccoli in boiling salted water for about 5 minutes.
Mix the sour cream and eggs and season with salt, pepper and lemon juice. Be careful with the salt, as the smoked salmon is usually already heavily salted.
Unroll the dough and place in a quiche pan. Pull up the dough at the edge. Prick the pastry base several times. Spread the well-drained broccoli and the smoked salmon, cut once in the middle, on the dough. Spread the egg and sour cream sauce with a tablespoon.
Bake the quiche in the oven for about 15-20 minutes until golden brown.