If you are really wanting to help the mom feed her babies I think you’ll need live mealworms. I’m not sure if dried ones will be nutritional enough for the babies. Why can’t you get mealworms? I understand if it’s the expense part of it. Of course buying in bulk is a better price. Wild Birds Unlimited here has them for a fairly good price. Pet stores are the most expensive. You can offer suet but that doesn’t have the protein. Glad she’s fairing well.
Tammy