Cook the Pasta: Boil pasta according to package directions. Save ¼ cup of pasta water before draining.
Blend the Sauce: In a blender, combine cottage cheese, milk, parmesan, garlic, arrowroot powder, Italian seasoning, salt, and pepper. Blend on high for 30-60 seconds until completely smooth.
Heat the Sauce: In a pan over low heat, pour in the blended sauce. Stir and warm gently for 2-3 minutes.
Combine with Pasta: Add the cooked pasta to the sauce, tossing to coat. Use reserved pasta water to adjust the consistency if needed.
Serve & Enjoy: Top with fresh parsley and extra parmesan. Serve immediately