1. Bring 8 cups of water to a boil in a large saucepan. Cut broccoli rabe into 2-inch pieces. Cook broccoli rabe in boiling water 2 minutes; drain.
2. Heat a large nonstick skillet over medium heat. Add olive oil to pan; swirl to coat. Add crushed red pepper and garlic to pan; cook 30 seconds, stirring occasionally. Add broccoli rabe to pan; cook 2 minutes. Stir in salt and black pepper. Stir in cannellini beans; cook 1 minute or until thoroughly heated. Top with shaved Parmesan cheese.