This turkey barley vegetable soup from Real Simple is one of our favorites. It's super duper healthy and the kids love it! You can change it up quite a bit—adding spices, using different meats or vegetables, even a different broth would give the flavor a little tweak. Tonight, instead of celery and spinach, I used baby bok choy. It was delicious. I'll probably make it again with swiss chard from the garden before the summer is over. What's your favorite summer soup?