I don’t think “really good,” “authentic Mexican food,” and “Casa Bonita” belong anywhere together in the same sentence.
(I know you’re referring to the style in which the food is created and served used at Casa Bonita, and not the food at CB itself, but man, Casa Bonita is awful. We went to the one in Denver a few years ago because we all remembered going there as kids and wanted to go relive the memories. Oof. You really can’t go back again.)
I haven’t been to the Great Wolf in Wisconsin Dells, but my sister and mom have. My nieces loved it, and my sister said they all had a good time (likely because the girls enjoyed it so much). I believe they met some of her husband’s relatives there, or something. I have been to the waterpark/hotel at the Mall of America, and it is pretty fun. Lots of kids, but still fun enough, especially for families. (We were there for my oldest niece’s birthday.) Tickets should be included. It’s worth going.