This is a light summery soup that works well served at room temperature. Plus it makes great use of leftover butternut squash as croutons. Smarts: Anytime you want a quick dinner just combine some onions + stock / broth + tomatoes + beans + frozen / fresh veggies and you have yourself a soup!
Heat a Dutch oven over medium-high heat. Add cooking oil and then garlic, onions, and chard stems to heated oil. Saute for 3 to 5 minutes, until softened.
Add in diced tomatoes with thyme. Cook for another 3 minutes before adding stock, beans, and corn. Cover and bring to a boil. Turn off heat and stir in chard leaves. Once leaves wilt, add in butternut squash croutons. Season to taste with salt and pepper.