Tater Green Bean Casserole

Section: Perfect Side Dishes to Complete Any Meal

This dish combines tender green beans with frozen diced O’Brien potatoes, creamy mushroom soup, and a blend of shredded cheeses. Seasoned with garlic salt and black pepper, the mix is baked until bubbly, then topped with crispy fried onions for added texture. It's a hearty side that enhances holiday meals or any comforting dinner. The comforting flavors and crispy topping make this classic twist a family favorite.

A chef in a kitchen preparing food.
Created by Olivia Olivia
Last modified on Sat, 01 Nov 2025 23:03:53 GMT
A white bowl filled with a green bean casserole. Save
A white bowl filled with a green bean casserole. | cuisineandlife.com

Tater Green Bean Casserole is a comforting holiday side dish that combines creamy soup, tender green beans, and crispy fried onions with a fun twist from finely diced potatoes. It brings a bit more texture and heartiness to the classic green bean casserole without losing the familiar flavors. This dish has become one of my favorite go to sides during festive meals because it’s easy to prepare yet feels special enough to impress guests.

I first made this casserole during a family Thanksgiving, and it quickly became the dish everyone asks me to bring every year. The potatoes add a delicious surprise in every bite.

Ingredients

  • Cream of mushroom soup: provides the creamy, savory base but can be swapped for cream of chicken or celery if preferred
  • Whole milk: keeps the casserole rich and luscious (2 percent works if you want lighter creaminess)
  • Garlic salt: boosts flavor and should be adjusted based on your salt tolerance
  • Frozen O’Brien potatoes: these finely diced potatoes with peppers and onions add bursts of flavor and texture no need to thaw before using
  • Canned green beans: an easy choice that ensures consistent texture fresh or frozen green beans could work but need different prep
  • French’s Crispy Fried Onions: the signature crunchy topping that gives the casserole its famous finish
  • Shredded cheese: I blend Colby and Monterey Jack for mild melty goodness but sharp cheddar or gouda work beautifully as well

Instructions

Spoon Creamy Mixture Together:
In a large bowl, whisk the cream of mushroom soup with the milk, garlic salt, and a pinch of black pepper until smooth and well combined. This creates the flavorful creamy sauce that holds everything together.
Fold in Vegetables and Cheese:
Add the frozen O’Brien potatoes, drained green beans, 1 1/3 cups of the crispy fried onions, and 1 cup of the shredded cheese to the bowl. Gently stir everything together until the potatoes and beans are evenly coated with the creamy sauce and the onions and cheese are worked throughout.
Pour into Baking Dish:
Transfer the mixture into a 9 by 13 inch baking dish and spread it out evenly. This size ensures the casserole will cook through without being too thick or too thin.
Bake Until Hot and Bubbling:
Place the baking dish uncovered in a preheated oven set to 350 degrees Fahrenheit. Bake for about 30 minutes, or until the casserole is hot all the way through and the edges start to bubble.
Add Topping and Finish Baking:
Sprinkle the remaining 1 cup of shredded cheese and 1 1/3 cups of the crispy fried onions evenly on top of the casserole. Return to the oven and bake for another 5 minutes or until the cheese is melted and the fried onions turn a lovely golden brown.
Serve and Enjoy:
Remove from the oven and allow to cool for a few minutes before serving. This casserole makes a perfect side that’s creamy, crunchy, and full of flavor.
A potato green bean casserole in a white dish.
A potato green bean casserole in a white dish. | cuisineandlife.com

One of my favorite parts about this casserole is the crispy fried onions on top. They provide that classic green bean casserole crunch and create a beautiful golden crust that makes the dish irresistible during holiday dinners. This dish brings my whole family to the table with smiles every year.

Storage Tips

Store leftovers in an airtight container in the refrigerator and consume within three days for best freshness. Reheat gently to keep the potatoes from getting mushy.

Ingredient Substitutions

If you do not have O’Brien potatoes, shredded frozen hash browns make a good replacement. Fresh potatoes must be diced very fine and par boiled before using. Cream soup varieties like cream of chicken or celery can swap in easily if you dislike mushrooms or want a different flavor profile.

Serving Suggestions

This casserole pairs beautifully alongside roasted turkey, ham, or baked chicken. A light salad or cranberry sauce balances the creaminess perfectly for a well rounded meal.

A casserole with potatoes, green beans, and cheese.
A casserole with potatoes, green beans, and cheese. | cuisineandlife.com

This tater green bean casserole is an easy crowd pleasing side that elevates holiday meals. Make it ahead and bake when ready to serve for maximum convenience.

Common Questions About Recipes

→ What are O’Brien Potatoes?

O’Brien Potatoes are frozen diced potatoes combined with onions and green and red peppers, perfect for quick cooking.

→ Can I substitute O’Brien Potatoes?

Yes, shredded frozen hash browns work well, or finely diced fresh potatoes that are par-boiled to ensure even cooking.

→ What can replace cream of mushroom soup?

Alternatives include cream of chicken, potato, or celery soups, each adding a unique creamy flavor to the dish.

→ How can this be turned into a main dish?

Add cooked, crumbled ground beef, chicken, or turkey to the mixture before baking for added protein.

→ Is this dish freezable?

Yes. Prepare as directed but do not bake. Cover tightly and freeze up to 3 months. Thaw overnight before baking.

→ How should leftovers be stored?

Store covered in the refrigerator and consume within 3 days for best freshness.

Tater Green Bean Casserole

Creamy green beans and diced potatoes combined with cheese and crispy onions for a comforting side.

Prep Time
10 minutes
Cooking Time
35 minutes
Total Time Required
45 minutes
Created by Olivia: Olivia

Recipe Category: Side Dishes

Skill Level: Perfect for Beginners

Style of Cuisine: American

Serves: 8 How Many Servings

Dietary Preferences: Vegetarian

Ingredients Needed

→ Canned and Frozen

01 2 cups canned green beans, drained
02 2 cups frozen O'Brien potatoes, unthawed

→ Dairy

03 1 cup whole milk
04 2 cups shredded Colby and Monterey Jack cheese blend

→ Pantry

05 1 can (10.5 oz) cream of mushroom soup
06 1 teaspoon garlic salt
07 1/2 teaspoon ground black pepper
08 2 2/3 cups French’s Crispy Fried Onions

Step-by-Step Directions

Step 01

Preheat oven to 350 degrees Fahrenheit. In a large mixing bowl, whisk together cream of mushroom soup, whole milk, garlic salt, and black pepper. Stir in frozen O'Brien potatoes, drained green beans, 1 1/3 cups crispy fried onions, and 1 cup shredded cheese until evenly combined.

Step 02

Transfer the mixture into a 9x13-inch baking dish, spreading evenly. Bake uncovered for 30 minutes or until the casserole is hot and bubbling.

Step 03

Remove casserole from oven and sprinkle the remaining 1 cup shredded cheese and 1 1/3 cups crispy fried onions evenly over the top. Return to oven and bake for an additional 5 minutes until cheese melts and onions turn light golden brown.

Step 04

Remove from oven and let stand briefly before serving warm to enjoy this enhanced classic side dish.

Helpful Hints

  1. O'Brien potatoes consist of diced potatoes with onions and peppers, commonly found frozen near hash browns. For fresh potatoes, finely dice and parboil before use to ensure even cooking.
  2. To avoid mushrooms, substitute cream of mushroom soup with cream of chicken, cream of potato, or cream of celery.
  3. This casserole can be prepared in advance and frozen unbaked for up to three months. Thaw in refrigerator overnight before baking.

Must-Have Equipment

  • 9x13 inch baking dish
  • Large mixing bowl
  • Whisk

Allergy Details

Check ingredient packaging for allergens, and consult a healthcare provider if you’re unsure.
  • Contains dairy and gluten from cream soup and fried onions

Nutritional Details (Per Serving)

These nutrition figures are for guidance only and don’t replace advice from a medical professional.
  • Calories Per Serving: 330
  • Fat Content: 18 grams
  • Carbohydrate Content: 25 grams
  • Protein Content: 10 grams