Ultimate Bake Kielbasa Cheesy Potato Casserole

Ingredients

• 1 pound kielbasa, sliced into rounds
• 4 cups russet potatoes, peeled and diced
• 1 small onion, finely chopped
• 2 cups heavy cream
• 2 cups shredded sharp cheddar cheese
• 1 cup shredded mozzarella cheese
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• Salt and pepper to taste
• 2 tablespoons unsalted butter, for greasing the pan