Drain the pineapple. Put the juice into a bowl, add the chopped walnuts. Let them soak while you prepare the rest of the salad.
Chop the lettuce in to pieces, put into a salad bowl. Then cut the strawberries and place them and the pineapple tidbits in the bowl with the lettuce. Drain the walnuts and add them to the salad. Toss all the ingredients together.
Have the Italian dressing with the salad when it is served it is best to be put on the salad right before it is served.