1. Prepare rice according to package directions.
2. Meanwhile, melt butter in a heavy saucepan over low heat; whisk in flour until smooth. Cook, whisking constantly, 1 minute. Gradually whisk in chicken broth, milk, and coconut milk. Cook over medium heat, whisking constantly, 2 minutes or until mixture is thick and bubbly. Stir in curry paste and next 3 ingredients. Stir chicken, green beans, and red bell pepper strips into curry mixture; cook 2 minutes or until thoroughly heated. Stir in 2 Tbsp. chopped cilantro. Serve chicken mixture over rice. Sprinkle with remaining chopped cilantro. Serve with lime wedges.