There’s something magical about a dish that marries simplicity with flavor, and onion soup mix potatoes do just that! Imagine digging into a warm, cheesy potato casserole that fills your kitchen with the enticing aroma of savory onions and melted cheese. Heavenly Creamy Potato Soup Creamy Au Gratin Potatoes Each bite is like a cozy hug on a chilly night, making it the perfect comfort food for gatherings or cozy nights in. For more inspiration, check out this Unstuffed Pepper Casserole recipe.
Growing up, my family often gathered around the dinner table, and onion soup mix potatoes were a staple. They always brought smiles and satisfied bellies. Whether it was a holiday feast or just another Tuesday, these potatoes never failed to impress. Crispy Potatoes with Pesto You can whip them up with minimal effort, leaving you plenty of time to enjoy life—or maybe catch up on your favorite show.
Why You'll Love This Recipe
- These onion soup mix potatoes are incredibly easy to prepare, needing just a few ingredients and minimal prep time
- The rich flavors meld beautifully, tantalizing your taste buds with every forkful
- Visually appealing layers of cheese and potatoes create an inviting dish that will impress guests
- Perfect for any occasion, from potlucks to family dinners, they are a versatile addition to any meal
I vividly remember one Thanksgiving when my cousin decided they could outshine my onion soup mix potatoes with their fancy truffle oil creation. Spoiler alert: they couldn’t! The comforting familiarity of my dish won everyone over.

Essential Ingredients
Here’s what you’ll need to make this delicious dish:
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Potatoes: Choose medium-sized russet or Yukon gold potatoes for their creamy texture; don’t forget to peel them!
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Onion Soup Mix: Any brand works well; opt for low-sodium if you want more control over saltiness.
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Shredded Cheese: Cheddar is a classic choice; feel free to mix in some mozzarella for extra gooeyness.
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Sour Cream: Adds creaminess; use full-fat for the best flavor but low-fat works too.
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Butter: A must for richness; using unsalted allows better control over seasoning.
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Milk: Helps achieve the desired creamy consistency; whole milk provides the best results.
The full ingredients list, including measurements, is provided in the recipe card directly below. For more inspiration, check out this Crockpot Beef Stew recipe recipe.
Let’s Make it together
Preheat Your Oven: Preheat your oven to 350°F (175°C). This step ensures even cooking and perfectly melted cheese on top.
Prepare the Potatoes: Peel and slice your potatoes into thin rounds. Aim for even slices so they cook uniformly; no one likes undercooked potato surprises!
Create Your Mixture: In a large bowl, combine sliced potatoes, onion soup mix, sour cream, milk, and half of the shredded cheese. Stir until everything is well-coated and creamy.
Layer in the Baking Dish: Grease a 9×13-inch baking dish with butter. Layer half of the potato mixture in the dish, followed by a sprinkle of cheese before topping with the remaining mixture.
Bake Until Tender: Cover the dish with aluminum foil and bake for about 45 minutes or until potatoes are tender when pierced with a fork.
Add More Cheese!: Remove foil and sprinkle remaining cheese on top. Bake uncovered for an additional 15-20 minutes until golden brown and bubbling gloriously.
With these steps complete, you’re all set to serve up a comforting side dish that pairs perfectly with almost anything! Don’t be surprised if everyone comes back for seconds—it’s that good!
You Must Know
- Onion Soup Mix Potatoes are a delightful blend of flavors, easy to prepare, and perfect for any occasion
- The rich aroma while baking can make anyone’s mouth water, making it an instant crowd-pleaser
- They can be a comforting side dish or even a standalone meal
Perfecting the Cooking Process
Start by preheating your oven to 375°F (190°C). While it’s heating, wash and slice your potatoes evenly. Toss them with onion soup mix before placing them in a single layer on a baking sheet for even cooking.

Add Your Touch
Feel free to customize your Onion Soup Mix Potatoes! You can add shredded cheese, fresh herbs, or even bacon bits for extra flavor. Garlic Herb Mashed Potatoes Experimenting with different types of potatoes can also yield varying textures and tastes.
Storing & Reheating
Store leftovers in an airtight container in the refrigerator for up to three days. Reheat in the oven at 350°F (175°C) until warmed through to maintain that crispy texture on top.
Chef's Helpful Tips
- For perfect Onion Soup Mix Potatoes, slice potatoes uniformly for even cooking
- Use fresh ingredients whenever possible to enhance flavor
- Don’t overcrowd the baking sheet to ensure crispiness all around
Cooking these potatoes reminds me of family gatherings where everyone would bring their favorite dish. One year, I brought this recipe and received rave reviews!
FAQ
Can I use other types of potatoes for this recipe?
Yes, you can use red or Yukon gold potatoes for different textures.
How do I prevent my potatoes from being mushy?
Cut the potatoes into even pieces and avoid overcrowding them on the baking sheet.
Can I make this dish ahead of time?
Yes, you can prep and refrigerate them before baking; just add extra cooking time.
Onion Soup Mix Potatoes
- Total Time: 1 hour 15 minutes
- Yield: Serves 6
Description
Onion Soup Mix Potatoes are a delightful, cheesy casserole that combines simplicity with rich flavors. This comforting dish, featuring layers of creamy potatoes and savory onion soup mix, is perfect for cozy nights or festive gatherings. With minimal prep time and easy-to-find ingredients, you’ll create a mouthwatering side that will impress family and friends alike.
Ingredients
- 4 medium russet potatoes (peeled and sliced)
- 1 packet onion soup mix (about 1 oz)
- 1 cup shredded cheddar cheese
- 1 cup sour cream
- ½ cup whole milk
- 3 tbsp unsalted butter (for greasing)
Instructions
- Preheat your oven to 350°F (175°C).
- Peel and slice the potatoes into thin, even rounds.
- In a large bowl, mix sliced potatoes with onion soup mix, sour cream, milk, and half of the shredded cheese until well combined.
- Grease a 9×13-inch baking dish with butter. Layer half of the potato mixture in the dish, sprinkle with cheese, then top with the remaining mixture.
- Cover with foil and bake for about 45 minutes, or until potatoes are tender.
- Remove foil, add remaining cheese on top, and bake uncovered for an additional 15-20 minutes until golden brown.
- Prep Time: 15 minutes
- Cook Time: 60 minutes
- Category: Side
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cup (200g)
- Calories: 320
- Sugar: 3g
- Sodium: 560mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 32g
- Fiber: 3g
- Protein: 8g
- Cholesterol: 40mg





