An item is not forbidden because of its taste. The taste of the item is only used to recognize what it is. Since the item itself is kosher, there is no problem. As we see, kosher items that tasted like non-kosher items were known in the time of the gemara.
The gemara Chullin 109b explicitly says that there are kosher fish or animals that taste the same as non-kosher animals.
Chabad.org cites this
Alternatively, according to the Gemara (Chullin 109b), for whatever
Hashem forbids us in the Torah, there is something similar that is
permissible. For instance, though we are forbidden to eat pork, it is
permissible to eat the brain of a fish called “shibota” (mullet),
which tastes exactly like pork.
Art Scroll Chullin 109b3
Yalta said to Rav Nachman, her husband: Now, let us see, - whatever the Merciful forbade us, He permitted us something corresponding 11
11 For every food or act which the Torah permitted, there
is another food or act from which the same pleasurable sensation as
that resulting from the forbidden food or act can be derived, and yet
is permitted (as Yalta will proceed to illustrate). This was purposely
planned by Hashem, so that we would recognize that His intention was
not in order to deny us the pleasure inherent in that item. (Chochmah
L'Mussar 2:27, cf. Maharal, Chidushei Agados, Shelah, BeAsarah
Maamaros, Maamar 3 and 4, Michtav MeEliyahu* vol. 1 pg. 263)