Bring a large pot of salted water to a boil and cook the orzo according to package directions until al dente.
Drain the orzo in a colander and transfer it to a large bowl; let cool slightly.
Add the drained, chopped roasted red peppers, drained capers, drained and chopped artichoke hearts, and drained sliced black olives to the bowl with the orzo.
In a small bowl, whisk together the olive oil, lemon juice, minced garlic, dried oregano, and dried parsley until combined.
Pour the dressing over the orzo and vegetables and toss thoroughly to combine and coat evenly.
Serve warm or refrigerate until ready to serve.