Step 1Toast the pine nuts in a medium skillet over medium-high heat, stirring frequently, until nicely browned. Set aside to cool.
Step 2Combine the rice, chicken or pork, parsley, bell pepper, green onions, capers, lemon zest, and pine nuts in a large bowl. Toss lightly to combine.
Step 3Whisk together the lemon juice, oil, salt, sugar, and pepper to taste in a 2-cup measuring cup. Add the dressing to the rice mixture and toss to mix. Place a lettuce leaf on each plate, top it with a mound of rice salad, then serve immediately.