01 - Rinse romaine lettuce, cherry tomatoes, cucumber, and red onion thoroughly under cold running water. Pat vegetables dry using paper towels.
02 - Combine chopped romaine lettuce, halved cherry tomatoes, diced cucumber, and sliced red onion in a large salad bowl.
03 - Sprinkle shredded cheddar cheese and seasoned croutons evenly over the mixed vegetables.
04 - Gently toss all ingredients to combine. Serve immediately for optimal texture and freshness.