You've received a lot of great ideas already. One of my favorite lunches is hummus with raw veggies and pretzels or crackers. You can even take hummus and spread it on top of a pita or flatbread, pile some lettuce, olives and tomatoes on top and then roll it up and slice it to make pinwheel wraps.
One of my other favorite veggie lunches is quinoa salad. How I make it varies a lot depending on my mood at the time but what I do is cook up the quinoa according to directions (much like couscous). When done, toss in some veggies like red onion, green pepper, grated carrots, watercress (cilantro or parsley also work well), celery, olives and some Italian dressing. Chill it up and you have a pretty tasty protein and veggie-packed lunch.
I also like making veggie sandwiches with roasted red pepper, artichoke hearts, lettuce or sprouts, tomato, cucumber and whatever strikes my fancy. You can always add hummus to it or some other kind of white bean spread to increase your protein intake.
Hope this helps. I am glad you are trying out some veggie options without resorting to fake meats. I think you will be happy with how good you and your family will feel once you start including some more grain and veggie based dishes into your diet.
Best of luck.