Thai cooking is full of flavor that comes from complex combinations of herbs and spices. Thai curry paste, which you can buy in the supermarket, makes it easy to get all of that complex flavor without having to buy 20 exotic ingredients. This dish calls for red curry paste, which is usually made from a combination of red chilies, garlic, lemongrass, shrimp paste, galangal, and kaffir limes. The heat level varies widely from brand to brand, so be careful about how much you add to your dish.
Rich coconut milk, peanut butter, brown sugar, and lime juice round out the flavor of this curry. With potatoes, bell peppers, and green beans, it can be a great one-pot meal, but I like to serve it over rice.
Pro tip: If you want your bell peppers and green beans to remain crisp-tender, don’t add them before cooking. Instead, blanch them in boiling water or steam them briefly in the microwave and then stir them in at the end