Restaurant-Style Smashed Potatoes

INGREDIENTS

• 1 stick butter, softened and cut into pieces
• 5 slices bacon, cooked and crumbled
• 1 cup pepper jack cheese, grated
• 3/4 cup sour cream
• Freshly ground black pepper (ditto!)
• 3/4 cup French fried onions
• 5 whole large red potatoes
• Salt (add plenty!)
• 2 whole green onions, sliced, plus more for topping