I would give about half, chop it up in to smaller bits and see how it goes. They will keep in the fridge for a little while, so you can always add more if need be. But from what I have heard mum and a growing litter eat like ganits lol!!
You could drop some extra bedding in if you think she needs it, she will come out and get it if she wants it, but will probably leave it if not. If she looks to be nice and cosy and all pups covered up I wouldnt worry too much.
Its good that they were nice and pink, that means they are healthy, there will be variations in size, some of the smaller ones may not make it, but try not to worry too much, mum can sense things that we cant, so she will do whats best.
Solid to solid parings is generally better, pattern to patter is not advised at all, but it is likely that she has bred with a close relative, and thats not great genetically, and if the litter that Simmons came from was not well planned and parents chosen for health, etc, there could be underlying issues, but this is a risk with any mating so try not to worry for now. I know its hard!
It is very important that she is left undisturbed, it is so hard not to take a peek, but it really is best not to, once pups are venturing out at about 7-10 days and depanding on how mum is in herself you can begin to interact a little more with them, just sit on your hands for now!