Grandma's Mashed Potato Casserole

Grandma's Mashed Potato Casserole

My grandma’s signature mashed potato casserole. Super creamy mashed potatoes topped with melted cheese. Yum! If I had to pick one food to eat for the rest of my life, it would be this.

Prep Time:
35 mins
Cook Time:
55 mins
Total Time:
1 hr 30 mins
Yield:
1 9×13-inch casserole
Servings:
12

Ingredients

  • 5 pounds potatoes, peeled and cut into chunks
  • 1 (8 ounce) container sour cream
  • 1 (8 ounce) package cream cheese, softened
  • ¼ cup margarine
  • 1 tablespoon milk
  • 1 tablespoon garlic powder, or more to taste
  • 2 ½ teaspoons salt
  • ¼ teaspoon ground black pepper
  • ½ cup shredded Colby-Jack cheese, or more to taste

Directions

Step 1
Place potatoes into a large pot and cover with salted water; bring to a boil. Reduce heat to medium-low and simmer until tender, 15 to 20 minutes. Drain.

Step 2
Return potatoes to the pot and mash until smooth. Add sour cream, cream cheese, margarine, and milk; beat until light and fluffy. Add in garlic powder, salt, and pepper. Transfer to a 9×13-inch casserole dish.

Step 3
Bake in the preheated oven until heated through, 30 to 40 minutes. Sprinkle Colby-Jack cheese over top and bake until cheese is melted, about 5 more minutes.

Cook’s Note:

Also tastes great to with light sour cream and reduced-fat cream cheese.

Nutrition Facts (per serving)

310
Calories
16g
Fat
35g
Carbs
7g
Protein
Nutrition Facts
Servings Per Recipe 12
Calories 310
% Daily Value *
Total Fat16g 21%
Saturated Fat9g 43%
Cholesterol34mg 11%
Sodium649mg 28%
Total Carbohydrate35g 13%
Dietary Fiber4g 15%
Total Sugars2g
Protein7g
Vitamin C38mg 188%
Calcium64mg 5%
Iron2mg 9%
Potassium858mg 18%

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient.If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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