Preheat your oven to 350 degrees. In a large oven-proof skillet with high sides over high heat, sauté the onion, bullion cube, ras el hanout, lemon zest, salt, pepper, and granulated garlic in a dry pan. Once the onion starts to caramelize (about 3 minutes), add the wine and deglaze the pan. Reduce the liquid by half, and add the chickpeas, eggplant, green peppers, stewed tomatoes, and Sriracha. Stir to incorporate.
Place in the oven for 30 minutes.
Serve over couscous. Garnish with Greek yogurt, mint, and lemon zest.
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