Roasted Butternut Squash with Red Onion and Pepitas

I’m not going to lie. For a long time I thought butternut squash was a pumpkin. It tastes and looks a lot like one, but this vine-growing squash is typically sweeter and a brighter orange than its pumpkin doppelganger. For the dressing, I’ve mixed actual pumpkin seeds with tahini, which add a nutty depth to this moreish vegetarian winner.