1. Cook pasta in a large pot of boiling salted water 6 minutes. Add beans; cook until pasta and beans are al dente, 4 to 5 minutes more. Add peas and immediately drain. Run cold water over pasta and vegetables until completely cool; drain and transfer to a large bowl.

2. In a small skillet, heat oil over medium-high. Add garlic; cook, stirring often, until golden, 1 to 2 minutes. Remove from heat; stir in lime zest and juice (it may splatter). Add dressing and 3/4 teaspoon salt to pasta bowl; season with pepper. Toss with cilantro. Serve, or refrigerate in an airtight container up to 1 day.