Cook pasta in boiling salted water until al dente. Meanwhile, combine cottage cheese, yogurt, cilantro and salt in a bowl of blender or small food processor; process 30 seconds.

Heat oil in small skillet over medium heat; add garlic and cook until aromatic, about 1 minute. Add red pepper flakes; remove from heat. Drain pasta; toss with sauce and garlic in serving bowl. Sprinkle with parmesan cheese if desired. |