what is this vegetable?

my landlord gave it to me. her english isn't perfect. i asked if was a tomato and she said no. then she said chew on it, which might have been her giving me sass in the 80s, or might have been a culinary suggestion.

i think there's like a
2% chance she's poisoning me
8% chance she gave me drugs
14% chance she somehow knew i was making a pizza later and thinks this entitles her a slice
30% a tomato
46% a vegetable that looks like tomatoes that i haven't heard of

thank you for your time