I'm guessing Sam's herb mix is proprietary?
Those look good though I'm another skipping the EVOO.
I like a Ranch dressing sometimes:
3/4 cp buttermilk
1-2 tblsp mayo
ground/chopped herbs—I like tarragon and chives, dill and parsley are standards
minced garlic small clove
½ tsp balsalmic vinegar
Salt and pepper to taste
Optional: a spoonful of mustard or a shake of hotsauce
Mix it everything together. Taste and adjust. Keeps well in the fridge.