Magic Cookie Bars

1-1/2 cups graham cracker crumbs
1/2 cup (1 stick) butter or margarine melted
1 (14 ounce) can sweetened condensed milk
2 cups (12 ounces) semi sweet chocolate chips
1-1/3 cup flaked coconut
1 cup chopped walnuts

1.  Preheat oven to 350 degrees (325 degrees for glass dish).  In small bowl, combine graham cracker crumbs and butter; mix well.  Press crumb mixture firmly on bottom of 13x9-inch baking pan.
2.  Layer evenly with remaining ingredients and press down firmly with fork.  Pour sweetened condensed milk evenly over everything.
3.  Bake 25 minutes or until lightly browned.  Cool.  Chill if desired.  Cut into bars.  Store covered at room temperature.