L.B.
I make a nice pasta salad with some combo of the following:
Chopped fresh tomatoes
Roasted red tomatoes (or just fresh chopped)
Feta cheese
Finely minced garlic
Scallions (or vidalia onions)
Capers
Lots of fresh herbs (basil is the most important, but I'll also add chives and parsley if I have them)
Dress the salad with:
Extra virgin olive oil
Lemon zest (the finely grated yellow peel -- just the yellow part, not the white below)
Lemon juice
Salt and pepper
You can omit parts of it (the red bell pepper, the lemon zest, the capers, etc). The essentials are the tomatoes, herbs, feta and olive oil/lemon juice dressing. Very nice and summery.