Directions

1. Preheat oven to 400°F; line 2 rimmed baking pans with parchment paper. Place banana bread slices in a single layer on prepared pans; brush both sides with buttery spread and bake 15 minutes or until toasted, turning once halfway through baking. Cool completely. Makes 16 bread slices.

2. Purée bananas, cottage cheese, sugar and vanilla extract in a food processor on high until smooth; transfer to a large bowl. Fold in ricotta cheese. Makes about 4 cups banana mixture.

3. Sift 1/2 tablespoon cocoa powder into 9-inch square baking dish to evenly coat.

4. Whisk espresso powder and 1/2 cup warm water in a wide, shallow dish. Dip both sides of 8 toasted banana bread slices, 1 at a time, in espresso mixture; place in a single layer in cocoa-dusted dish, cutting to fit if necessary. Spread bread with 2 cups banana mixture; sift 1 tablespoon cocoa powder over banana mixture. Repeat process with remaining 8 toasted banana bread slices, drizzling bread slices with any remaining espresso mixture; spread with remaining 2 cups banana mixture. Sprinkle banana mixture with walnuts, if desired; top with whipped topping and sift remaining 1/2 tablespoon cocoa powder over whipped topping. Refrigerate tiramisu at least 3 hours or up to overnight.

5. Cut tiramisu into 12 pieces; serve garnished with banana slices and/or shaved dark chocolate, if desired.