Cook the tortellini 2 minutes shy of the package directions. Drop peas in boiling water with tortellini 2 minutes before tortellini is done. Drain and rinse under cold running water; set aside.

Combine the oil, vinegar, and 2 tbsp of cheese in the bottom of a serving bowl Add the tortellini, peas, tomatoes, onion and capers; toss gently to coat. Sprinkle with the remaining 2 tbsp of cheese and the pepper.

Serve at once or cover and refrigerate up to 24 hours, and serve chilled.