Preheat the broiler. In a small bowl, whisk the orange juice concentrate, garlic, coriander seeds, 1 tbsp. marjoram and 2 tbsp. water. On a rimmed baking sheet, toss the pork and onions on one side and the pilaf and beans on the other side. Drizzle everything with the orange juice mixture; season with salt and pepper. Broil until heated through, about 3 minutes. Sprinkle everything with the remaining 1 tbsp. marjoram.