In a small bowl or measuring cup add all ranch dressing ingredients.
Whisk well to combine, taste test, and adjust seasonings, then refrigerate until ready to use.
Place one head of lettuce onto the clean cutting board.
Using a sharp chef's knife, cut in half lengthwise, then cut again each half to create 4 wedges.
Repeat with remaining lettuce heads then arrange them nicely on a large platter as shown.
Sprinkle with crumbled cheese, bacon and green onions.
Drizzle with dressing to taste.
Serve immediately and enjoy!