1/2 tsp. pepper
2 tsp. seasoned salt
1 tbsp. minced chives
1/4 cup butter, cubed
1 pound sliced bacon, cooked and crumbled
1 cup shredded part-skim mozzarella cheese, divided
1 cup shredded sharp cheddar cheese, divided
1/3 cup grated Parmesan cheese
2 medium onions, chopped
6 large potatoes, sliced 1/4 inch thick