repot into a good compost [I also sit them on grit to help drainage] and leave them just damp but frost free over winter. then feed every 2 weeks once they have been in leaf for 6 weeks. They may flower for you this year. the small bulbs will continue to grow and will in time flower.
Not sure what you mean by an Easter lily though. Do you know what species you bought?

Just googled them and they are Lilium longifolium. They can go in the ground if you want. bury the bulbs 4x their height. put the baby ones around them too.
just watch out for lily beetles. I have usually found them flower in the summer rather than at Easter though.

A lady in US grew some 7 ft high.................out doors

They were a Daily Telegraph offer......lost the cutting

i meant 4x the height of the bulb Bramhallbill :o)

I found the cutting, bill & care notes. Oddly enough there is the order date but not when I got them........What to do if rec'd in Sept-Oct.....Feb -April........lift & store till spring ...indoors frost free.......garage is close.......

I put mine into barely damp, compost, frost free until late spring then I plant them out. I find they start producing roots from Jan/feb if in compost.

Just looked today at 1 pot that still had yellow or green foliage. Its on a window sill indoors. I cut down to leave 1 inch stumps but noticed 2 shoots on their way!!!!!

That's because you have it indoors, the extra heat has 'kick started' it back into growth. You can move it out to a cool frost free place if you don't want it to grow now.