Eggplant, Tomato and Chickpea Stew

Combine onion, eggplant, tomatoes, garlic, ginger, curry powder, cumin, 1 cup water and 1 tsp. salt in a large (6- to 7-quart) slow cooker and stir well. Cover and cook on low until eggplant is soft, 5 to 6 hours. Stir in chickpeas; cover and cook until warmed through, about 15 minutes longer. Season with salt and pepper and serve.