Kabob ingredients don't need to be limited to the vegetables listed. There are several ways to customize kabobs; try incorporating cherry tomatoes, broccoli (precooked until crisp-tender), pineapple chunks (fresh or canned), yellow summer squash, red onion wedges, baby carrots (precooked until crisp-tender), halved tiny new potatoes (precooked until tender) or try adding fresh sprigs of herbs.