1. Heat a large Dutch oven over medium heat. Add oil; swirl to coat. Add onion, leek, and garlic; cook 5 minutes or until tender, stirring frequently. Stir in broth and next 4 ingredients (through salt). Bring to a boil; reduce heat and simmer 10 minutes or just until potatoes are tender, stirring occasionally. Stir in broccoli and beans; cook 8 minutes or until broccoli is tender.
2. Place one-third of soup mixture in a blender. Remove center piece of blender lid (to allow steam to escape); secure blender lid on blender. Place a clean towel over opening in blender lid (to avoid splatters). Blend until smooth. Pour into a large bowl. Repeat procedure twice with remaining soup mixture. Wipe pan with paper towels.
3. Return soup to pan. Cook over medium-low heat 5 minutes or until thoroughly heated, stirring occasionally. Ladle soup into bowls; sprinkle evenly with cheese.