Heat oven to 350 degrees F (325 degrees for glass dish). Coat 13x9-inch baking pan with no-stick cooking spray.
Combine graham cracker crumbs and butter. Press into bottom of prepared pan. Pour sweetened condensed milk evenly over crumb mixture. Layer evenly with chocolate chips, coconut and nuts. Press down firmly with a fork.
Bake 25 minutes or until lightly browned. Cool. Cut into bars or diamonds. Store covered at room temperature.