Had RNY three weeks+ ago. When do you start on soft mushy foods?
I would imagine every surgeon has a protocol. Your surgeon's office must provide it to you. I was 2 weeks post-op from LapRNY on a liquid diet and now have started 2 weeks of soft diet. Trial and error, some things work, others simple cause discomfort. Boiled carrots? No way. Tuna works, chew very well. Good luck.
I think every doctor has their own way of thinking. Mine was ok with me starting soft (pureed) food a week after surgery. After my 10 day appointment I was ok'd for regular food on a trial basis (Try it and if it works ok - if not wait & try again later).
Things went well for me.
Good Luck with your journey!