No salt, dairy or acid diet. Need help cooking for mom

I need some ideas for cooking for my mom, who is in end stage heart failure, and can’t have salt, dairy, or anything acidic. Sugar and spices are probably out too. The list of food she has been eating is small: scrambled eggs, toast, soup, applesauce, and I’m not sure what else.

Im a good cook, but my mind has gone blank. And mom know what she wants. I could really use some resources and ideas. Thanks.