I don't know if you're looking for a lighter or heavier sauce, but I recently made a creamy garlic sauce that turned out great. I used it over broccoli, chicken, and pasta.
Here's the recipe:
2 tbsp. butter, butter blend
1 tbsp. minced garlic (can substitute garlic powder)
1 tbsp. all-purpose flour
3/4 c. half & half (can use more)
1/3 c. Parmesan cheese (good if fresh)
1/4 c. parsley
In large saucepan, melt butter. Saute garlic over medium heat for 1 minute (until garlic tender). Remove from heat. Stir in flour, blend until smooth. Return to heat and gradually add half and half. Stir in cheese and parsley. Heat until sauce thickened and smooth.
Good luck! Hope this helps.