We like,the zucchini before it gets huge. Boiled with loads of butter salt and pepper. I never really cared for stuffed or baked when gets larger. We like to add yellow squash to it too. So,delicious.
I had a guy in the parking lot of the auto parts store hand me a huge zucchini a few years ago. Had to be two foot long and 6 inches around. Ended up making zucchini pickles from it.
I like small zucchini and yellow squash sliced in half lengthwise, cooked on the grill while brushing with a Worcestershire and butter mixture and sprinkled with salt and pepper.
I agree that small zucchini tastes better. The oversized ones can still be used, though. I have shredded them for zucchini bread. Yum!