Boil veggies in stock or broth to make a simple soup. If you have a lot of stray vegetables in your fridge or pantry, you can easily turn them into a comforting and nutritious soup. Dice up the vegetables into bite-sized pieces. Sauté hard veggies, like carrots, potatoes, or cauliflower, in a frying pan with a little butter or olive oil to soften them a little and bring out their flavor. Then, bring some broth or stock to a boil, add the veggies, and turn down the heat. Let your soup simmer for about an hour or until the veggies are nice and tender.