Caveat - I've not flown Airbus so my comments are generic.
Background info -
(a) the basic certification requirement is that the miss addresses both
(i) the landing miss - gear down, landing flap, AEO, and
(ii) the approach miss - gear up, approach flap, OEI.
Hence the usual protocol for the miss is
(b) pitch up/power up
(c) select approach flap
(d) select gear up
with the precise sequence being defined in the AFM.