Easy Mashed Potato Casserole

This mashed potato casserole with sour cream, parsley, and garlic is easy to prep ahead of time, especially during holiday season or when you have guests.

• Preparation Time: 15 mins
• Cooking Time: 60 mins
• Total Time: 1 hr 15 mins
• Calories: 408 Calories

Ingredients

• 2 tablespoons butter
• 1 (8 ounce) container sour cream
• 1 teaspoon onion salt
• 1 dash ground black pepper
• 1 pinch paprika, or to taste
• 1 pinch dried parsley flakes, or to taste
• 9 large potatoes, peeled
• 1 (6 ounce) package cream cheese
• 0.5 cup shredded Cheddar cheese
• 0.5 teaspoon garlic powder

Recipe Instructions

Step 1

Bake, uncovered, until cheese is melted and bubbly, about 35 minutes.

Step 2

Gather all ingredients. Preheat the oven to 350 degrees F (175 degrees C). Butter a 9x13-inch casserole dish.

Step 3

Place potatoes into a large pot and cover with salted water; bring to a boil. Reduce heat to medium-low and simmer until tender, about 20 minutes. Drain potatoes; reserve water for mashing, if necessary.

Step 4

Add sour cream, cream cheese, onion salt, garlic powder, and pepper to the potatoes. Using a potato masher or electric beater, beat the potato mixture until creamy. Add reserved cooking liquid, 1 tablespoon at a time, only if needed to achieve a creamy consistency.

Step 5

Transfer mashed potatoes into the prepared casserole dish; sprinkle Cheddar cheese, parsley, and paprika on top.