The Pioneer Woman's 7 Layer Salad is a crowd-pleasing dish that can be made and refrigerated before you're ready to serve it. The salad gets its name from the seven layers of ingredients, including greens, tomatoes, onions, cheese, etc.
In a large bowl, combine the romaine lettuce, green onions, celery, red bell peppers, cheddar cheese, mayonnaise, sour cream, apple cider vinegar, sugar, salt, and pepper. Mix until well combined.
Add the kidney beans, corn, grape tomatoes, and black olives to the bowl and gently toss to combine.
Serve the salad immediately or refrigerate until ready to serve. Enjoy!