Pasta salads are your friend! You could make a large batch of pasta, toss it with some olive oil to keep it from sticking, and store in the fridge to make salads out of whatever inspires you. I love mixing with roasted vegetables, feta, nuts, herbs, etc, inspired by Ina Garten's awesome recipe:
http://www.foodnetwork.com/recipes/ina-garten/orzo-with-roasted-vegetables-recipe/index.html
I also love mixed roasted root vegetables; you can make a large batch and it will call you from the fridge for a few days. I use some combination of potatoes, sweet potatoes, winter squashes (I know, they aren't root veg, but they are heavenly), radishes, purple onions, garlic, beets, turnips, rutabaga, carrots, parsnips....
My kids love Jamie Oliver's caramelized carrots, and so do I:
http://projects.washingtonpost.com/recipes/2007/12/05/sticky-saucepan-carrots/