In A Bowl, Combine The Chicken, Celery, Pecans And Diced Onion. Combine The Mayonnaise, Lemon Juice And Garlic Salt; Add To Chicken Mixture And Mix Well. Transfer To A Greased 13-In. X 9-In. X 2-In. Baking Dish. Bake, Uncovered, At 350 Degrees F For 20 Minutes. Top With Potato Chips, French-Fried Onions And Cheese. Bake 5-10 Minutes Longer Or Until Chips Are Crisp And Cheese Is Melted.