Heat oil in a large skillet over medium. Add onion and bell pepper; cook until soft, about 7 to 8 minutes. Stir in garlic, red curry paste, turmeric, ginger, and black pepper; cook until aromatic, about 2 minutes.
Stir in spinach (or kale) and cook until the greens wilt, about 1 to 2 minutes. Add chickpeas and stir to coat in spices.Add milk, peanut butter, and salt, and bring mixture to a simmer. Gently simmer for 12 to 15 minutes, until the curry sauce thickens. Stir in fresh lime juice. Taste and adjust seasonings as needed (you may want a pinch more salt).
Spoon chickpea curry over grain of choice and add desired garnishes (I suggest fresh cilantro and something pickled, such as pickled shallots, red onion, or even kimchi).
