Grill the steak, or substitute with chicken if preferred.
Mix the butter and garlic powder in a bowl, then top each steak with the butter and let it melt.
Slice the steaks into strips.
Make the pickled ranch dressing by combining all ingredients in a glass jar and shaking well.
Combine the romaine, pepperoncini, and avocado in a large salad bowl.
Pour the dressing over the salad and toss until coated.
Top with the hot crispy potatoes, warm steak slices, and crumbles of cheese.
Serve immediately.