Im like you, whatever I try I seem fine with, although chicken the otherday didnt agree with me and soon came back up, but thats the only thing.
I have had eggs, hard boiled/poached/scrambled. Ham, cheese grated/soft/slices/triangles, fish tuna/haddock/pilchards. Tinned fruit pineapple/grapefruit/manderin/pear
And the list goes on.