Crockpot Cheesy Potatoes and Kielbasa (Easy Slow Cooker Dinner) - Quickie Recipe

Ingredients

• 1 tablespoon unsalted butter or cooking spray, for greasing
• 1 can (10.5 oz) condensed cream of chicken soup
• 1/2 cup (120 g) sour cream
• 1/2 cup (120 ml) whole milk, plus more if needed
• 1 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/2 teaspoon smoked paprika
• 1/2 teaspoon black pepper
• 1/4 teaspoon kosher salt, optional
• 1 small yellow onion, finely diced
• 1 package (13-14 oz / 370-400 g) fully cooked kielbasa, halved lengthwise and sliced
• 1 bag (32 oz / 900 g) frozen diced hash brown potatoes
• 2 cups (225 g) shredded sharp cheddar cheese, divided
• 2 green onions, thinly sliced
• Extra black pepper, to taste