Seating will depend which exact plane you are on. Some have the new Recaro seats fitted whilst others don't (I believe only some A321's have it done atm). Also when we board (I fly from MAN) they normally do passengers with Children under 5 first and then allow everyone else to board. Sometimes they do it in seat rows too.
Monarch do Inflight Meals but these will stop in February, however I do recommend the Bacon Panini's
Btw we have a Monarch thread here:
http://www.pprune.org/airlines-airpo...ml#post9219971