Step 1

Heat oil in a large skillet over medium-high heat. Add chicken and scallions and cook, stirring, until the chicken is no longer pink, 4 to 5 minutes. Transfer to a plate with a slotted spoon.

Step 2

Add sweet potato to the pan and cook, stirring, for 2 minutes. Add coconut milk, curry paste, fish sauce, bok choy and green beans; bring to a simmer. Reduce heat to medium, cover and cook, stirring once or twice, until the vegetables are tender, 5 to 7 minutes. Return the chicken and any accumulated juices to the pan and cook until heated through, about 2 minutes more. Remove from heat and stir in basil and lime juice.