Here's a collection of salads that start with either a bed of lettuce or greens. They are fancy enough to stand on their own to be a good light dinner or lunch, but not so involved so as to require their own recipe.

Taco salad:  lettuce; fake taco meat, heated; cheese; salsa; olives; crumbled taco shells or tortilla chips; chipotle ranch or a southwestern themed dressing

Pear and blue cheese salad: greens; a sliced pear (or strawberries); blue cheese crumbles; walnuts or pecans; raspberry vinagrette

Honey mustard and avocado: baby spinach or baby mustard; sliced avocado; sliced boiled egg; diced purple onion; sliced mushrooms; honey mustard dressing