Curried Ground Turkey With Potatoes

Name: Curried Ground Turkey With Potatoes
Ingredients: 3 to 4 tablespoons vegetable oil (or ghee or coconut oil); 1 pound ground turkey (thigh meat if you can get it); 1 chopped onion; 1 to 2 chopped fresh red chiles , optional; Salt, to taste; 1 (1-inch) piece peeled ginger , grated fine; 2 cloves garlic , minced (about 2 teaspoons); 1 tablespoon garam masala (or curry powder); 1 teaspoon turmeric; 1 teaspoon ground cumin; 1 teaspoon ground coriander; 1/2 cup water; 2 large Yukon Gold potatoes , peeled and cut into 1-inch chunks; 2 to 4 Roma or other plum tomatoes , diced; 1 cup fresh or frozen peas; 1/2 cup (loosely packed) chopped cilantro or parsley