Summer Vegetable Soup

Ingredients

• 1 small onion, quartered, slice thin
• 1 tablespoon olive oil
• 5 cups reduced-sodium vegetable broth
• 1 cup zucchini, sliced
• 1 (15 1/2 ounce) can navy beans, rinsed, drained
• 1 cup red potatoes, peeled, diced
• 1 cup sweet potato, peeled, diced
• 1 cup corn
• 1 cup peas
• 1 cup green beans, cut into 1-inch pieced
• 1 cup tomatoes, peeled, chopped
• 1/4 teaspoon ground pepper
• 1/8 teaspoon ground turmeric
• 1/4 cup celery leaves, chopped
• 2 tablespoons tomato paste