Slightly heat the vegetable oil, curry powder and grated lime zest, remove from the stove and allow to cool. Reduce orange juice to 30 ml in a small saucepan, then allow to cool.
Remove the two ends of the pineapple, cut off the peel with a saw knife, cut out any seeds. Cut out the stalk and cut the pineapple into 1 cm thin slices. Peel the ginger, slice it finely and mix it with the lime juice, orange juice, honey and curry oil to form a vinaigrette. Just before serving, peel and slice the bananas. Spread the pineapple and bananas on plates, drizzle with the vinaigrette.