Lima Bean and Spring Vegetable Soup Recipe - Vegetarian Food

Ingredients

• 1 tbsp olive or vegetable oil
• 2 white onions, chopped (about 3 cups)
• 1/2 cup chopped and peeled carrot
• 4 1/2 cups canned low-salt chicken broth or vegetable broth
• 1 (10 oz) package frozen baby lima beans, thawed
• 5 oz green beans, trimmed and cut into 1-inch pieces
• 1 (14.4 oz) can asparagus, drained, or 0.25 (2.5 lb) bag frozen asparagus
• 2/3 cup thinly sliced fresh basil, or 1 tbsp dried basil
• Freshly grated parmesan cheese