Sorry if you have a thing for any of these, this is my personal judgement that leads me to believe I am one step closer to gourmet greatness than all the others who feel as I do.
If any of these come in to your radar I would avoid them;
-semi and sundried tomatoes
they overpower anything they are served with
-cream in pasta (dash on occasion)
-avocado in pasta or served warm in any way
-tubed "fresh herbs", are they serious?
-tasty cheese in any italian dishes, Romans dont use coon.
-dead horse
save it for late night munchies, try stepping up to relishes, pickles and mustards
-sliced white bread
its too sweet and is air
-fish dishes served with cheese
-chicken breast in curries and stews, difficult for it to not become tough and dry
-starch on starch, pumpkin risotto is stodge on stodge.
-pesto, chorizo, tapenade, great ingredients, just dont combine them
there are many more, TBC