Complex sentence: Seven-layer salad is a popular American dish that includes a colorful combination of seven layers of ingredients: iceberg lettuce, tomatoes, cucumbers, onions, sweet peas, hard boiled eggs, sharp cheddar cheese, and bacon pieces.
Split into simpler sentences: Seven-layer salad is a popular American dish that includes a colorful combination of seven layers of ingredients. The traditional layered ingredients are iceberg lettuce, tomatoes, cucumbers, onions, sweet peas, hard boiled eggs, sharp cheddar cheese, and bacon pieces.