To dream of mashed potatoes represents simplicity or a lack of complications. Areas of your life that are easy to understand or easy to live with. Alternatively, mashed potatoes may reflect positive feelings about someone taking care of you or doing a job for you.
To dream of mashed potatoes with gravy represents simplicity that totally satisfies you.
Example: A woman dreamed of having trouble eating . In waking life she was a successful real estate agent that was starting to have serious problems selling a home during the US banking crisis and economic slowdown of 2008.