A trick that adds diversity to your salads:  Choose 2-4 vegetables and 1-2 fruits.  Dice them to bite size.  Maybe added to a green leaf salad or served as combined fruits and veggies.

Maybe prepared one day in advance.
Choose 2 or more.  Thinly slice vegetables
Asparagus
Avocado
Broccoli
Cauliflower
Olives
Peppers (red, yellow, orange)
Tomatoes

Fresh champagne mushrooms (white) 
No slicing needed: Peas, Corn, Beans

Fresh Fruit
Choose 1 or 2 fruits. Remove pits or cores then slice and dice.
Apples
Apricots
Cherries
Pear
No slicing: Craisins or Raisins

Add 1/8 c. thinly sliced red onion, Feta or blue cheese, herb of choice (Arugula, Basil, Cilantro, Parsely, 1 ounce of chopped nuts, sprinkled flaxseed. Drizzle with vinaigrette dressing, or olive oil and balsamic vinegar. (salt and pepper to taste)