Once you've gathered all the necessary ingredients, let's get cooking! Begin by washing and drying your romaine lettuce. Then, dice the tomatoes and olives and slice the mushrooms, mozzarella cheese, salami, and pepperoni into small pieces.

In a large bowl, combine the lettuce and all the other ingredients. Mix thoroughly and top with your favorite Italian dressing or vinaigrette. Serve chilled for maximum freshness!