Heat the oven to 375°F and coat a 9-by-13-inch baking dish with cooking spray.
Combine the jasmine rice, chickpeas, green beans, coconut milk, broth, curry powder and salt in the dish.
Stir until the coconut milk is even, press the rice below the liquid and cover tightly with foil.
Bake for 40 minutes without lifting the foil, then test rice from the center.
Add 2 tablespoons hot broth, reseal and bake for 5 to 10 minutes if the rice has a chalky core.
Rest the covered casserole for 10 minutes, then fluff it gently so the chickpeas stay whole.