To prepare the shrimp: In a large bowl, mix together the lime juice, peanut oil, cumin, and salt. Set aside.

Put the shrimp in a glass dish and pour the lime juice mixture over the shrimp, being sure to coat both sides. Let sit for 30 minutes at room temperature.

Preheat a gas grill to medium high. Alternatively, set a rack in the broiler about six inches below the heating element and preheat.

To make the quinoa: In a medium pot, bring the stock to a boil. Reduce the heat to medium-low and add the quinoa and salt. Cover and let cook for 10 minutes. Add the beans, corn, jalapeño, orange zest, and cumin and cook for 10 more minutes, or until most of the liquid has been absorbed. Turn off the heat and leave the pot covered. (Note: The quinoa can be made 1 day ahead up to this point and refrigerated. Bring to room temperature and add the mango and cilantro just before serving.)

To grill the shrimp: Place the shrimp on the grill. Cook for 2 minutes. Turn the shrimp and cook for 1 to 2 more minutes, or until they are just pink and feel firm but not hard to the touch. Overcooking will make the shrimp tough and dry.

To broil the shrimp: Transfer the shrimp to a broiler pan. Broil for 2 to 3 minutes, or until the shrimp have turned light pink and feel firm but a tad springy to the touch. Overcooking will make the shrimp tough and dry. (Note: No need to turn the shrimp.)

To assemble: Gently mix the mango and cilantro into the quinoa. Transfer to individual plates or a large platter. Lay the shrimp on top, and sprinkle the cheese over the shrimp and quinoa. Garnish with cilantro and serve.