For avocado cream, mash avocado with sour cream and salt until smooth. In a small saucepan, combine beans, pineapple, mango and salsa; heat through, stirring occasionally. Prepare rice according to package directions., Toss shrimp with jerk seasoning. In a large skillet, heat oil over medium-high heat. Add shrimp; cook and stir until shrimp turn pink, 2-3 minutes., Divide rice and bean mixture among 4 bowls. Top with shrimp and green onions. Serve with avocado cream and, if desired, lime wedges.