How to Make It
Spread cucumber and bell peppers onto several layers of heavy-duty paper towels; let stand 5 minutes to drain excess moisture. Scrape into a medium bowl using a rubber spatula. Add the cheeses, onion, salt, and garlic; stir with a fork until well blended. Spread about 1/2 cup cheese mixture over 4 bread slices; top each serving with 2 lettuce leaves and 1 bread slice.