Mystery Squash

When this squash vine came up in the exact spot that I'd planted our Jack-o-Lantern pumpkins last year, I assumed that it was a volutary reseeding of said pumpkin. After all, I didn't grow any other squash last year, hadn't planted any squash anywhere near that spot this year, and none of my neighbors grow squash. Then the fruit in the picture began to form, and I was a bit surprised by its skinny, elongated form. The vine succumbed to powdery mildew along with the rest of my planted squash vines, but this fruit survived. It was dark green with some striation, so then I thought that perhaps some zucchini had been tossed that way (my yard also happens to be my neighbor's personal landfill, apparently). But lo and behold! After the vine had perished, the squash began to ripen... to orange.

I'm not sure if it's a Jack-o-Lantern pumpkin that just happens to be very oddly shaped, or if it's something else entirely, but we won't be letting it go to waste. I brought it inside finally, and when it ripens further, I'll slice it up and try my grandma's fried squash recipe on it.