This is my mom's creation, and always a big hit. Here's her original recipe, but I only need half for my family.
1 stick butter
1 1/2 pkg. low fat cream cheese
1-2 tsp crushed garlic, to taste
up to 3 c. fat free half and half
3 oz parmesan cheese
Make it like a white sauce. Melt butter in saucepan over med/high heat. Add cream cheese, cut in small pieces a little at a time. Add garlic, heat and stir until smooth. Slowly add cream and parmesan cheese, constantly stirring. Cook about five minutes.
Even with the low fat cream cheese and fat free half and half, this is an awesome sauce. Serve over whole wheat pasta to alleviate any guilt may feel. :)