You can get much more creative with salads than just a pile of lettuce and various other chopped veggies with a bit o' dressing.
I haven't checked it out, but I'll bet there are even some books at Amazon.com just with salad recipes in. You might want to pick one up and get some new ideas to change up your salads.
www.vegsource.com is a vegetarian site, and there are recipes there, for salads and other veggie-rich foods.
Change up the type of veggies you use, the texture of them (shredded, diced, sliced, cut into sticks---I find that even the same food--like carrots---tastes a bit different when it is in a different form), and other preparation methods (ie: marinating rather than serving with dressing, dipping into a bean-based dip like hummus, etc.)
Fill celery 'boats' with a chickpea spread (I make mine by finely chopping red onions and garlic in a food processor, adding a can of drained and rinsed organic garbanzo beans (chickpeas), along with a glob of vegan mayo and/or prepared mustard and a bit of Celtic sea salt, pepper and some poultry seasoning. (no recipe, I just do it to taste). You can decrease the mayo by using another liquid of your choice.
Marinate some veggies (mushrooms, red pepper, tomatoes, artichoke hearts, olives...think "Italian") in some olive oil and balsamic vinegar, with italian seasoning (you can use very little or even no oil when marinating, and you can use any type of vinegar, or even citrus juice---lemon, lime or even orange--or pineapple juice to marinate).
Slice kale or other dark green leafies (the most nutritious veggies, with kale topping the charts at number 1!) into ribbons, briefly sauté in some olive oil and garlic, and serve as a side dish. (you can also just marinate this).
You can also add veggies to other foods to give them a phytonutrient boost. Wherever you can, add veggies:
Whenever you make a soup, chili or pasta sauce, throw in a handful of frozen mixed veggies (use a variety). Fresh baby spinich works well for pasta sauce (just throw in a bunch when you heat it up).
Make a pasta salad, but double or triple the amount of veggies vs. pasta.
Do you like potato salad? I make a 'green and red' potato salad, where potatoes are actually in smaller quantity than the peas, chopped red pepper, red onion and peas that I add to it.
Sauté a variety of veggies and add to cooked grains for a pilaf.
Put marinated veggies on a skewer and roast or cook on the barbecue.
I, for one, never get sick of a good salad (FYI: many restaurants DON'T serve what I would call a 'good salad'---iceberg lettuce-treated with whatever wilt- and browning-prevention chemical they use-- and a few slices of tasteless, hard tomatoes with a sprinkling of shredded carrots aren't my idea of a salad, in fact, the decorative kale many restaurants puts under the bowls of a salad bar looks tastier to me than most salads!). But I've been known to just wash a romaine heart and eat the leaves one by one, as what I call a 'hand salad'!