Rodeo is tupperware allowed ?

going to the rodeo this year and was thinking about brining tupperware c: not sure if it’s allowed. i don’t see it on the prohibited list but my dad said they will throw it away. i bought the $50 pack for food but i don’t want the food to go to waste i wanna bring it back home to share with my family. i usually just wrap it in paper towels but id rather not be nervous of it spilling in my bag. thank u in advance!