I often say kids having a GS will eat until the fridge is empty! I do remember many times being in absolute shock at the amount I've seen DS eat (and he is not a big boy) and he appears to be asking for food all day long.
When you say you gave a solids supper, do you mean after your child's evening meal?
Yes. I introduced the supper when we dropped the BT milk. I offered the sippy of milk and a snack before our BT routine began and then offered a smaller bottle and weaned the bottle over about a week continuing with the 'supper' and allowing the morning milk to increase if wanted. Dinner and supper times changed with changing nap routines and BT but something like
dinner 4.30 (a full evening meal)
supper 5.30/5.45 (cup of milk, he only really took a little, with a solids snack)
BT routine began 6.00
Sleep 7.00
Basically giving the supper about a 1hr to 1.5hr before sleep.
In fact I think we had EBT as an every night thing at the beginning of this as he had just dropped to one nap so it will have been more like supper at 5.00 with BT routine beginning at 5.30 for a 6.30 sleep until his BT moved later again. I can also remember times when dinner ran straight into supper, he ate a full dinner and then a full supper, it's just how times worked out sometimes say if dinner was a bit late and he needed EBT too.
Although the guidance is to drop bottles at 12 months the important aspect is that toddlers don't have a bottle all day long, a quickly drank bottle at BT is not going to harm development. You do need to be brushing teeth after the bottle though as milk on teeth all night is not good.
I'd say if Daddy enjoys that closeness and time with her, there is no real need to drop the bottle right away. On the other hand she won't be taking a bottle for ever so maybe they can begin another bonding activity together which could be equally as enjoyable for both? Toddlers and children, both boys and girls, enjoy wrestling and rolling around on the floor testing their strength, dads often enjoy this role. Another lovely activity is a story book together snuggled up on the sofa or in bed.
TBH I probably wouldn't do a supper AND a big BT milk, it feels like a bit of an imbalance in taking in so many calories at the end of the day - although if it works for you there is no reason why not. I'd probably look at increasing calories in the earlier part of the day, maybe eggs for breakfast which would give an extra portion of protein.