1. Cook the pasta according to package directions. Drain, and set aside.
2. Heat the olive oil in a large nonstick skillet over medium-high heat. Stir in zucchini, salt, and pepper; cook until the zucchini begins to soften (2-3 minutes), stirring frequently. Stir in the bell pepper and beans; cook until bell pepper is softened (about 2 minutes), stirring frequently.
3. Add pasta to skillet; cook until heated through (about 2 minutes), stirring constantly. Transfer the pasta to bowls; top with Parmesan curls. Serve immediately.