1 teaspoon ground turmeric, or 2 tablespoons chopped fresh
One 28-ounce can diced tomatoes, or 3 cups chopped fresh
1pound green beans, rinsed, trimmed, and chopped into 1/2-inch pieces
Salt and pepper
3/4pound all-purpose potatoes (like Yukon Gold), peeled and grated
1 red onion, chopped
1 teaspoon ground cumin
1 teaspoon fennel seeds
1/2 teaspoon ground cinnamon
1/2 teaspoon ground cardamom
1/4 teaspoon ground cloves
1/4 teaspoon ground nutmeg
1/4cup chopped pistachios
1/4cup chopped fresh mint
1 fresh red chile (like Thai or Fresno), seeded if you like and minced
Toasted poppadum (optional)
Instructions
Put 1 tablespoon oil in a medium saucepan over medium-high heat. When it’s hot, add the ginger (and the fresh turmeric, if using) and cook, stirring frequently, until it’s golden, 3 to 5 minutes. Add the dried turmeric (if using) and cook and stir until fragrant, less than a minute. Add the tomatoes, stir, and bring the mixture to a boil. Reduce the heat so the sauce bubbles steadily, cover, and cook, stirring once in a while, until the tomatoes break down and the ginger softens, about 15 minutes.
Put 1 tablespoon of the oil in a large nonstick or well-seasoned cast-iron skillet over medium-high heat. When it’s hot, add the beans, sprinkle with salt and pepper, and stir to coat with the oil. When they start to sizzle, add 1/4 cup water to the pan and cook, tossing occasionally, until the water evaporates and the beans are crisp-tender, 3 to 5 minutes. Transfer them to a large bowl.
Return the skillet to medium-high heat. When it’s dry and hot, add 2 tablespoons oil, swirl, then add the potatoes. Cook, tossing occasionally with a spatula, until the potatoes are lightly browned and tender but not mushy, 10 to 15 minutes. Transfer to the bowl with the beans but don’t stir.
Put the remaining 2 tablespoons oil in the skillet and return to medium heat. When it’s hot, add the onion and cook, stirring frequently, until it’s soft and a little caramelized, 5 to 10 minutes. Add the cumin, fennel seeds, cinnamon, cardamom, cloves, and nutmeg; sprinkle with salt and pepper. Cook, stirring until the spices are fragrant, just a minute or 2.
Pour the spiced onion over the potato mixture and toss with 2 forks to combine. Taste and adjust the seasoning. (If you’d like the vegetables steaming hot, return them to the skillet and cook over low heat for a few minutes.) Serve the potato mixture nestled into some tomato sauce, garnish with the pistachios, mint, and chile, and have some poppadum on the side if you like.