ADD spinach to large pot of boiling water; cook 1 min. Remove spinach with slotted spoon, reserving water in pot for cooking pasta. Rinse spinach with cold water; drain well. Chop spinach; set aside.
RETURN water to boil. Add pasta; cook 10 min. or just until tender. Meanwhile, blend garlic in blender until minced. Add spinach, cottage cheese and milk to blender; blend until smooth. Blend in Parmesan and seasonings.
DRAIN pasta; place in large bowl. Add spinach mixture and red peppers; mix lightly.