Indulge in the Creamy Delight of Twice Baked Mashed Potatoes

Ingredients

• 5 lbs russet potatoes, peeled and cubed
• 1 cup sour cream
• 1/2 cup unsalted butter, softened
• 1/2 cup whole milk
• 1 cup shredded cheddar cheese
• 1/2 cup grated Parmesan cheese
• 6 slices bacon, cooked and crumbled
• 2 green onions, thinly sliced
• Salt and pepper to taste