Heat 2 teaspoons olive oil in a large skillet over medium heat. Add onions and cook, stirring, until the onions begin to brown, about 10 minutes.
Push the onions away from the middle of the skillet. Add the remaining 1 teaspoon olive oil. To the olive oil, add the garlic cloves, ginger, ground coriander, coriander seeds, salt, and pepper. Cook, stirring, for 1 minute.
Stir in the tomatoes and balsamic vinegar.
Spread the chickpeas in the bottom of a crockpot (slow cooker). Pour the tomato mixture over the chickpeas and stir well.
Cover the crockpot and cook on LOW for 6 hours or on HIGH for 3 hours.
Just before serving, stir in the spinach and parsley.
Serve as a side dish or over rice as an entrée.
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Notes
Please note that I am not a medical or nutritional professional. I provide nutritional information for my recipes as a courtesy to my readers. It is calculated using the LoseIt! calculator. While I attempt to provide information that is as accurate as possible, you should calculate the nutritional information independently before relying on it.