All I feed is live from hatchling to adult. No risk to offering a well hydrated and fed appropriately sized mouse to her. If she doesn't eat it in 30 minutes, remove it.

However - what I'd suggest first is to fill her enclosure with loosely crumpled newspaper to help her feel more settled and secure, since she's in such a large enclosure for her size. After you see that her restless behavior has calmed down a bit, drop the live mouse (with the paper in the enclosure) into her tank and walk away. Check back in about 30 minutes and the mouse should be gone and your snake will have a nice lump in her.