Hi Spindy, I am in the same situation. I have twins and another elder one at school and know exactly what you are talking about. I also need good nursery that offer EYfS but they are all expensive. After a loooooong search, i found bright beginning that will cost you 5,000 a term each child for 3 days only, but they offer international curriculum till 3 years then british from 3-4!!! al mushrif branch still have place, I believe, but I heard a lot of different reviews about it, some love it and some extremely don't. Also kids fantasy nursery in MBZ they do big discount for twins, like 4250 AED each per term for 3 days as well, they are British but not EYFS. I didn't hear any reviews about it.
The other option is jigsaw, they have two branches one in karama and one in MBZ and they will cost 4,000 each per term for 2 days only.
As an advice, if you are not working, keep them for 2 or 3 days only in a good nursery to get quality education better that keeping them for 5 days and they get nothing.
I tried two nurseries of those cheap ones, cheap that costs 2,500 AED a month for both for 5 days and regretted a million times. Just wasted my money and they had bad experience.
My son is in FS2 at bisad (Nord Anglia Abu dhabi) and he loves it. The school is really nice, facilities are good and teachers are qualified. I heard there was issues when it first opened but now they are really doing well.