1. Cook tortellini according to package directions, omitting salt and fat. Add snap peas to pan during last 3 minutes of cooking; cook 3 minutes. Drain.
2. Place mint and next 7 ingredients (through garlic) in a mini food processor; process until finely chopped, scraping sides of bowl once. Combine oil and juice in a small bowl, stirring with a whisk. With processor on, slowly pour oil mixture through food chute; process until well blended. Combine tortellini mixture and mint mixture; toss gently to coat.