In a large bowl, combine chicken, pineapple, pecans, celery, and basil, tossing to blend.
In a small bowl, combine mayonnaise, lemon juice, salt, and pepper, stirring to blend. Add to chicken mixture, stirring until well combined.
Using a serrated bread knife, cut croissants in half horizontally. Place lettuce leaves on bottom half of each croissant. Fill each croissant evenly with chicken salad.
Serve immediately.
Notes
*We used meat pulled from a rotisserie-style chicken. Make-Ahead Tip: Chicken salad can be made a day in advance, placed in a covered container, and refrigerated.
Recipe by TeaTime Magazine at https://teatimemagazine.com/pineapple-basil-chicken-salad-croissants-recipe/