Preheat the oven to 425 degrees. Drizzle the acorn squash halves with olive oil, salt & pepper. Place cut side down and roast for approximately 25 minutes. Flip them over and cook cut side up for approximately 10-20 more minutes, or until the flesh is tender and the outer edges are golden brown. I turned on my broiler during the last couple of minutes to get a nice golden edge.
Meanwhile, in a large skillet, heat a few tablespoons of olive oil. Add the chopped onion and a bit of salt and pepper and cook for a few minutes, until it starts to become translucent. Add the garlic, cumin & cinnamon and cook, stirring, until fragrant but not burning. Mix in the kale and cook for a few minutes, until the kale is wilted. Turn off the heat, add a splash of balsamic vinegar, the cooked quinoa, and a good drizzle of honey and toss.
Next, mix in scallions, feta, if using, currants, cilantro, and a pinch of red pepper flakes. Taste and adjust seasonings. Scoop the filling into the cooked acorn squash, and top with toasted pumpkin seeds, more feta (if you wish), and a drizzle of olive oil and more honey.