Layer 1 1/2 cups graham cracker crumbs, bananas and ice cream in a 9 X 13-inch pan; sprinkle with walnuts. Freeze until firm.

In a medium saucepan over medium-low heat, combine chocolate chips, butter, evaporated milk and confectioners' sugar. Cook until melted and smooth, stirring constantly.

Cool to room temperature.

Add Vanilla. Spread over frozen dessert. Freeze until firm.

Spread with whipped topping at serving time; sprinkle with remaining 1/2 cup graham cracker crumbs.

Per serving: 656 calories, 9 grams protein, 38 grams fat (percent calories from fat, 52), 76 grams carbohydrates, 43 milligrams cholesterol, 287 milligrams sodium.

Mc formatted by Martha Hicks 5/98