Add the diced onion, carrots, zucchini, red bell pepper, and minced garlic to the slow cooker.
Pour in the drained chickpeas, diced tomatoes, vegetable broth, and olive oil.
Stir in the chopped apricots along with the cumin, cinnamon, paprika, ginger, salt, and black pepper.
Cover and cook on low for 6 hours or on high for 3 hours until the vegetables are tender.
Stir the tagine once more before serving to distribute the sauce evenly.
Spoon into bowls and top with fresh cilantro and a squeeze of lemon.