It is calcium levels you need to worry about with repeat egg laying. Foods like broccoli, kale, figs, almonds will help if she won't eat egg with the shell. For a small bird I would buy RAW UNSALTED almonds, soak them over night in just clean water (room temp) the next day drain them and do a fine chop and give them to her. I would do this in very small batches so that it doesn't go to waste. Soaking them makes them more easily digestible for birds and humans actually.
Organic Kale, just wash and weave through the bars fun and full of calcium.