Preheat oven to 425 degrees and line a baking sheet with aluminum foil.
In a small bowl, whisk together coconut oil, mustard, hot honey, and salt. Toss with the delicata rings until evenly coated.
Place squash on the baking sheet and roast for 15 minutes, then flip and finish roasting until golden and just beginning to char, around 10 to 15 minutes longer.
While the squash is roasting, peel all the citrus then slice the blood and cara cara oranges and pull apart the segments of the satsumas and clementines.
In another small bowl, whisk together all ingredients for the dressing.
To serve, place orange slices and segments on a plate and drizzle the dressing generously. Sprinkle with salt then top with the roasted delicata squash.