Boil pasta. Bring a large pot of salted water to a boil, then add pasta and cook according to package directions. When al dente, reserve one cup of pasta cooking water before draining.
8 ounces pasta
Make the creamy pesto sauce. To a blender, add the cottage cheese, spinach, pesto, and 1/2 cup of the reserved pasta cooking water. Blend on high for 1-2 minutes, until creamy and smooth. If your sauce is too thick, add another 1/4-1/2 cup of the reserved pasta water and blend again.
1 cup low fat cottage cheese, 1 cup spinach, 1/2 cup pesto, 1/2 - 1 cup reserve pasta cooking water
Toss the pasta. Pour the sauce over the pot of drained pasta, then toss until evenly coated.
Serve. Serve immediately. I like to garnish with shaved or grated parmesan and fresh basil. Enjoy!