COMBINE graham cracker crumbs and butter in small bowl; mix well. Press crumb mixture firmly into bottom of 13 x 9-inch baking pan.
POUR sweetened condensed milk evenly over crumb mixture. Layer evenly with remaining ingredients; press down firmly with fork.
BAKE 25 to 30 minutes or until lightly browned. Cool. Cut into bars.
For perfectly cut bars: Line entire pan with a sheet of foil. Coat lightly with no-stick cooking spray. When bars are cool, lift up edges of foil to remove from pan. Cut into individual squares. Lift off foil.