Using a food processor, pulse the spinach a few times until very finely chopped. Combine spinach, drained chickpeas and diced onion in an appropriate sized bowl. Again, using the food processor add lime juice, stevia, cilantro, mustard, garlic, cumin and olive oil. Process until smooth, scraping down the sides of bowl as needed. Pour the dressing atop of the spinach and chickpeas, add in pomegranate and stir well. Add salt and pepper to taste. Allow to rest for 10 minutes to allow the flavors to fully develop.