The Answer is in the Pumpkins

The volunteer "what is it" plant I posted here, now has lots of these cute little pumpkins hiding among the leaves. Thanks to those who suggested giving it a little more time. The bees must have finally made it to the last row in the garden (but too late for the one on the left).
It is also continuing to GROW over its neighbors. Even the zucchini plants across the aisle are getting nervous.