Soak mussels in cold salted water 20 minutes. Trim beards and drain. Cook mussels covered in 1 cup water in large pot over high heat, shaking often, until shells open, 5 to 7 minutes. Discard mussels whose shells don't open.
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Place mussels on pasta with slotted spoon, then ladle on hot Basic Tomato Sauce. Serve immediately.
