Cauliflower & Mushroom Soup

Ingredients

• 6 cups cauliflower florets (2-inch pieces)
• 2 Portobello mushrooms, cut into 1-inch pieces
• 1 large red bell pepper, cut into 1-inch pieces
• 2 tablespoons plus 2 teaspoons olive oil, divided
• 1 tablespoon thyme leaves
• 1 teaspoon ground cumin
• 2 cups chopped onions
• 4 cups reduced sodium vegetable broth
• 1/4 teaspoon ground black pepper