Slow Cooker Mediterranean Chicken and Vegetables

Name: Slow Cooker Mediterranean Chicken and Vegetables
Prep time: 30 min
Cook time: 5 h 20 min
Total time: 5 h 50 min
Ingredients: 1 teaspoon ground turmeric; 1 teaspoon ground ginger; 1 teaspoon ground coriander; 1 teaspoon salt; 0.25 teaspoon ground cumin; 0.25 teaspoon cayenne pepper; 8 bone-in chicken thighs, skin removed; 1 (15 ounce) can chickpeas, drained; 1 (14.5 ounce) can diced tomatoes, undrained; 12 marinated artichoke hearts, drained; 4 large carrots, chopped; 4 large garlic cloves, halved; 1 (3 inch) piece cinnamon stick; 1 tablespoon olive oil, or more as needed; 1 large sweet onion, halved and thinly sliced; 0.5 pound green beans, trimmed and halved; 1 red bell pepper, seeded and cut into 1-inch pieces; 0.25 cup coarsely chopped cilantro; 3 cups water; 2 cups couscous