I definitely understand how you feel. I have rice krispies every morning, chicken with french bread every lunch time, and plain mash potato with peas every dinner! I'm sick of it too. I tried introducing a couple of new foods this weekend and surprise surprise i was sick all day Tuesday.
I don't really know what to suggest becasue i'm in the same position as you but i wanted to let you know i share your frustration and i'm here for you. I can only hope tha things get better for you soon