Chickpea and Tahini Harissa Stew

Ingredients

• 1 Tbsp extra-virgin olive oil
• 1 1/2 cups finely chopped onion
• 1/2 cup finely chopped celery
• 2 garlic cloves (peeled and finely chopped)
• 1 tsp cumin seeds
• 2 tsp harissa paste
• 2 tsp za’atar (or 1dried thyme)
• 1/2 tsp salt
• 4 cups low-sodium vegetable broth
• 2 - 14 oz cans chickpeas (drained and rinsed)
• 2 cups peeled and finely diced sweet potato
• 3 Tbsp tahini paste
• 1 cup roasted red peppers
• 1/3 cup chopped toasted walnuts