Set your oven to 450°F and line a roasting tray with parchment paper or a silicon mat.
Once your squash is peeled, seeded, and cut in half lengthwise, cut the squash into stubby, angled, thick (on one end and thin on the other) chunks. Place all of the cut squash into a large mixing bowl, sprinkle with the ras el hanout, then add the olive oil, maple syrup, and a sprinkle of sea salt. Toss and stir to coat.
Lay out the squash on the prepared baking sheet, leaving room between each piece, and scrape out any remaining spiced oil from the bowl with a silicone spatula and drizzle on top. Roast for approximately 30 minutes, until squash is tender and starting to brown at the edges. Remove the tray from the oven - squash can be served warm or room temperature as you prefer.
While the squash is roasting, first prepare the pickled chillies. Make the brine: using a clean glass jar, add the vinegar, sugar, and salt. Shake or stir until the sugar and salt are dissolved. Add in the sliced chili peppers and submerge in the brine. Let sit for a while on the counter as you make the labneh and the squash finishes roasting.
While the squash finishes roasting, prepare the labneh mixture, adding the labneh, finely chopped preserved lemon peel, preserved lemon brine or lemon juice, and finely slivered mint into a bowl or food processor. Mix and adjust seasoning as needed, adding more lemon juice or brine to brighten the flavours as needed. Only add salt after tasting as preserved lemons can be salty.
To plate for serving, mound and smear the prepared labneh on the bottom of a large plate or shallow bowl. Mound the roasted squash on top of the labneh, and garnish with pickled chili slices and reserved slivered mint leaves. Take a teaspoon or two of the pickled chili brine and drizzle over the labneh, serve with extra pickled chillies and brine on the side if desired, and enjoy!