Cook pasta according to package directions, omitting salt and fat.
While pasta cooks, heat oil in a large nonstick skillet over medium heat. Add garlic; saute 2 minutes. Drain clams, reserving liquid. Add clam liquid to skillet, and simmer 5 minutes. Add clams; simmer 5 additional minutes.
Combine drained pasta and clam mixture in a serving bowl; toss gently. Sprinkle with cheese and pepper. Serve immediately.