Somehow this is even worse than a big "KALE" stamped on your sternum. "You Had Me At Veggies" is the saddest qualifier for human connection ever, along with being a terrible movie reference. What about "I'M GOING TO MAKE HIM A SALAD HE CAN'T REFUSE" or "LOVE MEANS NEVER HAVING TO MAKE YOUR SPINACH"? Those aren't great, but they're better than this. Instead, you might as well have written "FRANKLY, MY DEAR, I DON'T GIVE A DAMN. ALSO SOMETHING ABOUT CUCUMBERS."
Avocados have more of a fan following than any other fruit or vegetable. I found this honestly wonderful shirt which I want to own after the phrase "Avocadho" popped into my head (which is also a real shirt). Other avocado shirt puns include "avocado this world," "let's avocuddle," "avocado-holic," "avo-cardio," and for you Harry Potter fans, "avocado kedavra." That's the killing curse plus the food I like! Yeah I'll admit it, I'm a big ol' avocado slut.