Preheat the oven to 375 degrees F. Lay bacon onto a wire rack on top of a baking sheet or a piece of aluminum foil and bake in the oven until crispy, about 15-20 minutes. Remove the bacon from the baking sheet and place onto a paper towel to remove any excess grease.
Increase the oven temperature to 400 degrees F.
Cut the bacon into bits and add to large bowl, then add rotisserie chicken, Mexican cheese blend, 1/2 cup of ranch dressing, hot sauce, 2 tbsp ranch seasoning mix, and diced green onions. Mix together.
Make the garlic butter by melting butter in a microwave safe bowl. Add in garlic and 2 tbsp of ranch seasoning mix. Mix together.
Cut slider rolls in half and place onto a parchment lined baking sheet. Brush the tops and bottoms of the rolls with about 1/2 of the garlic butter mixture (save the rest for the top of the rolls).
Add the chicken mixture to the bottom half of the rolls, drizzle about 1/4 cup of ranch dressing on top and a sprinkle of diced parsley and leftover cheese. Place the top half on top of the filling and gently press down.
Brush the remaining garlic butter on top and bake in the oven until the cheese is fully melted, about 10-15 minutes.