1. Preheat the oven to 375 degrees F.
2. Slice the carnival squash into 1-inch slices and place them in a bowl. Drizzle with the miso vinaigrette and olive oil, then season with salt and pepper and allow to marinate at room temperature for 20-30 minutes.
3. Line a baking sheet with If You Care Parchment Paper and place the squash slices on top, making sure they do not overlap. Make sure to reserve the remaining marinade and set aside.
4. Roast for 20 minutes, then flip the slices, baste with remaining marinade and allow them to roast for another 20 minutes. Remove from the oven and sprinkle with the sesame seeds. Allow to cool slightly, then serve.