Melt the ghee in a large skillet over medium heat. Add the cumin seeds and let them sizzle 30 seconds.
Add the onion and cook 8 to 10 minutes, stirring often, until golden brown.
Stir in the ginger, garlic and green chili for 1 minute. Add the coriander, turmeric, chili powder and 1 teaspoon of the garam masala and stir 30 seconds.
Add the tomatoes and salt and cook 4 to 5 minutes until they break down into a thick sauce.
Raise the heat to medium-high, add the turkey and break it into small crumbles. Cook 6 to 7 minutes until no pink remains.
Add the water and peas, cover and simmer 5 minutes. Stir in the remaining garam masala, cilantro and a squeeze of lime. Serve, or cool and pack into containers.