Remove lid and cook for another 15-20 minutes. Remove from heat, stir in half and half, and 1/4 cup of the cilantro and half of the scallions. Portion into bowls and top with remaining cilantro, scallions, Greek yogurt or sour cream, and cheese.
If you want to make this in the crockpot, brown the turkey first, then add everything into the crockpot except for the toppings and half and half. Cook on low for 5-6 hours or on high for 3. Stir in half and half when finished and top with toppings.