Pasta + sliced mushrooms + olives + tomatoes + whatever other fresh veggies come to mind + Italian sald dressing (This is my default for picnics, barbeques, or any other occasion where the sald will be unrefrigerated for a while. The maudhrooms kind of *cook* in the dressing if made the night before.))
Pasta + frozen peas + finely diced onions + whatever else strikes your fancy + vegan mayo, salt and pepper.
Pasta + pesto sauce (I posted my recipe in the recipes section) + tomatoes + black olives
Chickpeas added to any of the above for protein and because I LOVE chickpeas.