LO is pushing 7 months now and eats rice cereal pretty much as her only solid.

We tried pea purree a couple of weeks ago and then she got sick so I didn't want to give her anything new. Then we tried sweet potato purree yesterday and her tummy has been messed up since. I'd rather not keep bothering her digestive system with foods that bother her! I'm nervous to keep trying things, but want her to start getting more types of foods in her. I'm not sure what to do here.