Preheat your oven to 425F. Line a baking sheet with parchment paper.
Add the squash to the baking sheet and drizzle with oil and sprinkle with salt. Use your clean hands to toss everything to coat. Roast for 20-25 minutes, or until the squash is caramelized on the bottom. Remove and let cool slightly (also delicious at room temp).
For the yogurt sauce, in a bowl, stir together the yogurt, lemon juice, garlic (if using) and salt.
Smear the sauce onto your plate and top with squash, dukkah oil, herbs (if using), a squeeze of lemon and sprinkle of salt.