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.