midrash - Reshit is Torah or khalla ? Contradiction

In the beginning of midrash rabbah we read from rav Oshaya :

וְאֵין רֵאשִׁית אֶלָּא תּוֹרָה There is no "Reshit" except Torah

and there, just after :

וְאֵין רֵאשִׁית אֶלָא חַלָּה There is no "Reshit" except Khalla

So what do we choose ?

Thanks !