I have 4 ball around that weight, I also breed my own rats, when I don't have any rat pups I feed them a mouse or small ASF each. The mouse is more often than any thing else, now that I have baby that are consuming most of my potential feeders.
As long as you are feeding them a prey that is about the size of your snakes biggest girth she'll be fine.
If your not planning on breeding her in the future a mouse every 5-10 days is fine. I would only go with feeding her more if your wanting to breed her in the near future.