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Splash of Taste – Vegetarian Recipes

Splash of Taste - Vegetarian Recipes

Easy veggie recipes

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Home / Vegetarian

Potato Casserole Recipe

Published October 19, 2022 | Updated March 7, 2023 | By Mandy & Jane

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Cheesy potato casserole image for Pinterest.
Cheesy potato casserole image for Pinterest.

Looking for an amazing cheesy potato casserole recipe? Look no further! It’s the perfect comfort food on a cold wintery day or the perfect side for your Sunday or holiday table. This delicious dish is packed with cheesy, creamy potato flavor and is perfect for a crowd!

Someone dishing up homemade cheesy potato casserole.

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If you’re a fan of au gratin potatoes, dauphinoise potatoes, or hash brown casserole, then you’ll love this easy recipe.

We love cheesy potato casserole in a creamy sauce, but many recipes use cream of chicken soup in the ingredients, so we created a special vegetarian version, which is packed full of flavor and everyone can enjoy!

Why you’ll love this easy casserole dish

  • It’s the perfect holiday side dish for Easter, Thanksgiving, and Christmas.
  • You can make it ahead, leaving you more time to spend with your guests.
  • A real crowd pleaser, everyone, young and old, will love this dish.
  • All the ingredients are 100% vegetarian.

Ingredients you’ll need

You’ll need all the ingredients shown in the photograph below.

Ingredients needed, potato, green onions, mushroom soup, cheese, salt and pepper, melted butter, and sour cream.

Not all potato casseroles are made equal, this recipe is SO easy and SO tasty, you need this in your life!

How to make cheesy potato casserole with step-by-step instructions

Our cheesy potato casserole recipe is easy if you follow our simple instructions.

A full printable recipe and the measurements in both US customary and metric are available in the recipe card below.

Preheat your oven to 375°F/ 190°C and grease a 9″ x 13″ casserole dish.

Place your potatoes in a pan of salted cold water, bring them to a boil, and then reduce the heat to a simmer for approximately 12 – 14 minutes until they are fork-tender.

Cooking cubed potatoes in a saucepan.
Simmer your potatoes until they are fork-tender.
Stirring in the sour cream to the soup mixture.
In a separate pan, melt butter, then add cream of mushroom soup, sour cream, and green onions, and stir to combine.
Adding cheese to the casserole mixture.
Add half of the cheese.

Then, in a separate pan, melt your unsalted butter, add cream of mushroom soup, sour cream, green onions, half of the shredded cheese, and season with salt and pepper to taste.

Toss the potatoes (or frozen hash browns) in the cheesy soup mixture until they are fully combined, and then place the potato mixture in a prepared baking dish.

Potatoes coated with the casserole sauce.
Add your cooked potatoes to the casserole sauce and stir until evenly coated.
Potato casserole in oven dish with cheese sprinkled on top.
Add to a prepared oven dish and scatter the remaining cheese evenly over the top.
Cooked potato casserole fresh out of the oven.
Bake for approximately 30 minutes.

Top with the remaining cheese and bake until bubbly and browned, approximately 30 minutes.

Remove from the oven and serve immediately; enjoy your cheesy potatoes!

We hope you enjoy making and eating our potato casserole and would love to hear how you got on with making it.

Please leave a comment below, and feel free to ask any questions you may have.

Recipe notes and expert tips

  • Like garlic?
    Add garlic powder to the soup mixture.
  • Make ahead
    Follow the recipe instructions to add the remaining cheese, cover it, and store it in the fridge for up to 3 days. When ready to cook, remove the casserole from the fridge and leave it to reach room temperature; add the cheese and then cook as directed.
  • Storage
    Store any leftovers covered in the fridge for up to 3 days.
  • Freeze
    Follow the recipe instructions to add the remaining cheese, cover tightly with kitchen wrap and kitchen foil, and freeze for up to 2 months.
Potato casserole cooked with green onions on top.

What to serve with potato casserole

Our vegetarian potato casserole is a perfect side dish and a delicious change from mashed potatoes or baked potatoes; we love to serve it with nut roast, lentil loaf, or mushroom wellington.

Other sides accompanying the casserole are mashed potatoes, air fryer green beans, honey roasted carrots, roasted potatoes, air fryer broccoli, and honey roasted Brussels sprouts.

And if you want a showstopper dessert, try our amazing baked Alaska or the favorite fall dessert sweet potato pie.

You’ll need a holiday cocktail to enjoy, so how about a cosmopolitan or a Manhattan cocktail?

Can I make cheesy potato casserole ahead of time?

Yes, you can!

You can make vegetarian cheesy potatoes up to 3 days in advance, follow the recipe until adding the remaining shredded cheese.

Cover the dish with plastic wrap and store it in your fridge.

When you are ready to cook, then leave the casserole out for 20 – 30 minutes to reach room temperature; add the cheese, and then cook as instructed.

It also freezes well, as above; follow the recipe up until the point of adding the remaining cheese, then wrap it tightly with kitchen wrap and kitchen foil and freeze for up to 2 months.

A cheesy potato casserole freshly made and ready to eat.

How to store leftovers

Cover the casserole dish with kitchen wrap and store in the fridge for up to 3 days.

More easy casserole recipes for you to try at home

If you love our potato casserole, then you should check out these easy recipes!

  • Corn casserole
  • Cheesy broccoli casserole
  • Hash brown casserole
  • Squash casserole
  • Pineapple casserole
  • Cheesy green bean casserole

We are also working on an awesome twice-baked potato casserole, funeral potatoes, and more potato casserole recipes, so check back soon!

Delicious corn casserole freshly baked.

Corn casserole recipe

Someone about to serve a helping of broccoli casserole.

Broccoli Casserole Recipe

Homemade dauphinoise potatoes, ready to eat.

Dauphinoise potatoes recipe

Freshly made Hasselback potatoes.

Hasselback Potatoes

Someone dishing up a cheesy potato casserole.
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Potato Casserole Recipe

This cheesy potato casserole recipe is the perfect dish for your next potluck or family gathering! It's easy to make and can be easily doubled or tripled to feed a large crowd. Plus, it's always a hit with both kids and adults!
Prep Time15 mins
Cook Time45 mins
Total Time1 hr
Servings4
Calories391
Course: Side Dish
Cuisine: American
Author: Mandy Applegate | Splash of Taste
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Ingredients

  • 1½ lbs Russet potatoes peeled and diced
  • 2½ tbsp Butter melted
  • ½ cup Cream of mushroom soup
  • ½ cup Sour cream
  • ¼ cup Green onion
  • Salt and pepper to taste
  • 1 cup Cheddar cheese divided and shredded
US Customary – Metric

Instructions

  • Preheat your oven to 375°F/190°C
  • Place your potatoes in a saucepan of cold water u and simmer until they are fork tender, approximately 12 – 14 minutes
    1½ lbs Russet potatoes
  • Then, in a separate pan, melt the butter, then add cream of mushroom soup, sour cream, salt, pepper, onion, and half of the cheese
    2½ tbsp Butter, ½ cup Cream of mushroom soup, ¼ cup Green onion, 1 cup Cheddar cheese
  • Toss the potatoes or frozen hash browns in the mixture until fully combined and place in a prepared baking dish
  • Top with the remaining grated cheese and bake until bubbly and browned approximately 30 minutes
    1 cup Cheddar cheese
  • Remove from the oven, serve immediately and enjoy!

Notes

Like garlic?
 Add garlic powder to the soup mixture
Make ahead
 Follow the recipe instructions up to adding the remaining cheese, cover, and store in the fridge for up to 3 days. When ready to cook, remove the casserole from the fridge and leave it to reach room temperature, add the cheese and then cook as directed
Storage
 Store any leftovers covered in the fridge for up to 3 days

Nutrition

Calories: 391kcal | Carbohydrates: 35g | Protein: 13g | Fat: 23g | Saturated Fat: 13g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 0.3g | Cholesterol: 66mg | Sodium: 484mg | Potassium: 826mg | Fiber: 2g | Sugar: 2g | Vitamin A: 748IU | Vitamin C: 11mg | Calcium: 259mg | Iron: 2mg

Disclaimer

Please note that nutrient values are estimates only. Variations can occur due to product availability and manner of food preparation. Nutrition may vary based on methods of origin, preparation, freshness of ingredients, and other factors.

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About Mandy

A vegetarian for over 35 years, Mandy has taught herself to be creative in the kitchen. Traveling extensively, Mandy loves learning and adapting vegetarian recipes from across the world. Read more...

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Recipe Rating




Comments

  1. Elizabeth Swoish says

    October 19, 2022 at 11:01 pm

    5 stars
    When I tell you I ate nearly half the pan myself, I mean it!! So delicious 😋

    Reply
  2. Donna says

    October 21, 2022 at 12:55 am

    5 stars
    Potatoes and cheese? Yes please, I am here for all the comfort food yums. This definitely ticked all of the boxes on this cold and rainy day!

    Reply
  3. Sherry says

    October 24, 2022 at 2:06 am

    5 stars
    Your Cheesy Potato Casserole is the bomb!!! My family LOVED this potato recipe!! Thank you for an awesome recipe!!

    Reply
  4. Alex Bala says

    October 25, 2022 at 7:39 am

    5 stars
    I’m here for all the food that you have. Cheese potatoes are the way to go and these are full of flavor.

    Reply
  5. Sarah says

    February 24, 2023 at 11:29 am

    5 stars
    This was a big hit with the family, even my 4 year old asked for me – that says it all!

    Reply
    • Mandy from Splash of Taste says

      February 24, 2023 at 4:24 pm

      To get a 4-year-olds approval is high praise indeed!

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We love sharing our vegetarian food and drink recipes with you. If you’re cutting down on meat, going vegetarian or vegan, there’s something delicious to eat and drink for you here
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