Many people have the Minhag to eat Taigalach on Rosh Hashana. To the best of my knowledge Taigalach is made with walnuts. How does this jive with the Minhag not to eat nuts on Rosh Hashana since Egoz ≈ Chait?
See Yad Yitzchak 1:208 who discusses nuts mixed in a tavshil if it loses its classification of a nut. http://www.hebrewbooks.org/pdfpager.aspx?req=855&st=&pgnum=198
See Be'er Moshe 3:97 as well who writes don't yell at those who are meikel.