Salad at my house may include, greens, nuts,seeds,flowers, herbs, cheese, raw veggies, onions, garlic ,olives and fruit in any ratio depending on availability and what suits me at the time.
Sometimes boiled eggs, and meat. So dressings can be a dollop of an oil and vinegar or of mayonaise.
Also when faced with a group I often opt for a large bowl of greens and smaller bowls of things which can be added. Folks love making their own choices.
When the salad is beautiful it doesn't need much to dress it up. Most dressings are full of ingredients because the salads folks are dressing are iceberg lettuce a slice of onion and wedge of tomatoes with very little flavor.