French Onion Potatoes

Featured in Veggie meals full of flavor.

This twist on cheesy potato casseroles adds a creamy oniony sauce with crispy fried onions for extra crunch and flavor.
Maria from tastyhush
Updated on Thu, 08 May 2025 10:33:24 GMT
A white dish of baked cheesy potatoes topped with golden crisp onions, with a striped napkin and silver spoon nearby. Pin it
A white dish of baked cheesy potatoes topped with golden crisp onions, with a striped napkin and silver spoon nearby. | tastyhush.com

Can I tell you about my ultimate comfort food hack? These French Onion Funeral Potatoes have become my family gathering superstar. I whipped them up for a winter Sunday meal last year, and get this - my mom called the very next day wanting the recipe! That never happens! The crunchy fried onions on the top take everything up a notch, and that cheesy potato mixture underneath? It's basically happiness in every spoonful.

What Makes This Dish Special

Forget ordinary potato casseroles! I've transformed those classic funeral potatoes we all remember and given them a French onion upgrade. The sauce turns out so smooth and creamy, and when you get that perfect mouthful with the crispy onion topping, it's simply wonderful. Even my picky nephew asked for more helpings last Christmas dinner!

What You'll Need

  • Hash Browns: Go for frozen cubed ones as they keep their shape throughout cooking.
  • Cheese: I'm all about sharp cheddar for that extra flavor boost!
  • Sour Cream: Don't skimp with low-fat here full-fat makes everything better.
  • Sauce Stuff: We'll create something amazing with butter, onions, garlic, flour, broth, and milk.
  • For Crunchy Toppings: Yellow onions work best cut them super thin.
  • Flavor Boosters: You'll need salt, pepper, a tiny bit of cayenne for kick, and dry mustard every bit counts!

Cooking Instructions

Prepping Your Potatoes
Start by combining hash browns with melted butter, cheese, and sour cream. I always reach for my largest mixing bowl to avoid messy spills!
Creating Your Sauce
This is where things get good. Soften those onions until they're sweet, toss in some garlic (because why wouldn't you?), then create your sauce. Once it's nice and thick, mix it with your potato mixture.
Baking Time
Transfer everything to your baking dish my trusty 9x13 pan has seen many family feasts. Then let your oven work its magic.
Crispy Onion Magic
While it's baking, make those amazing crunchy onions! Watch them carefully they'll burn in a flash. I usually make more than needed because they're so snackable.
Finishing Touch
Crown your hot casserole with those freshly fried onions and watch everyone come running!

Make-Ahead Strategies

When things get crazy, here's a handy trick: you can prep this beforehand! I often put it together the evening before big events. Just wait to add those crispy onions until you're ready to serve. You can even stick it in the freezer for a couple months, which works perfectly for unexpected guests or when you're just craving something warm and comforting.

Tasty Variations

I sometimes go fancy by mixing in Gruyère with the cheddar and wow, it's fantastic! My sister loves throwing in some crumbled bacon (because everything's better with bacon), and my buddy Lisa adds diced red peppers for a pop of color. Running short on time? Those store-bought crispy onions work in a pinch I won't tell anyone!

Kitchen Secrets

After countless times making this dish, I've picked up some handy tricks! Make sure to thoroughly drain those hash browns nobody wants a soggy casserole. Warm up your milk and broth first your sauce will turn out way smoother. And trust me, keep a close eye on your oil temperature when frying onions. I've triggered the smoke alarm once or twice learning this the hard way!

The Magic Combination

There's something truly special about the way these velvety, cheesy potatoes work with those crunchy onions. It's like you're getting two comfort foods in one amazing dish. Whenever I bring this to gatherings, people crowd around it and I always take home an empty pan!

Perfect Pairings

This casserole plays well with others! It sits beautifully next to holiday turkey or weekend pot roast. I always include something green on the table to balance all that wonderful richness. Last Thanksgiving, my brother-in-law claimed it actually outshined the turkey his words, not mine!

Common Questions

People always ask me: Can you use shredded hash browns instead? Yes, but cubed ones stay firmer. Can you use store-bought onions? Absolutely on busy days! How long do leftovers last? They're great for up to 4 days if they stick around that long!

Why I Love It

You know what's truly wonderful about this dish? It draws everyone together. Whether we're celebrating a holiday or just having Sunday dinner, people gather round when this comes out of the oven. Something about that golden-brown top with those crunchy onions just brings smiles to faces. And isn't that really what cooking's all about?

A baked casserole topped with crispy fried onions, showcasing a creamy, cheesy filling. Pin it
A baked casserole topped with crispy fried onions, showcasing a creamy, cheesy filling. | tastyhush.com

Frequently Asked Questions

→ Can store-bought crispy onions work here?
Absolutely, you can use packaged crispy onions like French's if needed. But making them fresh delivers the best taste and texture.
→ Can I prepare it ahead?
You can prep the casserole and sauce in advance, but leave the crispy onions off until serving time. Store in the fridge for up to a day before baking.
→ Why are they called funeral potatoes?
They're nicknamed funeral potatoes because they’re often served at funeral gatherings in some American communities, thanks to their comforting and easy-to-make nature.
→ What about using fresh potatoes?
Fresh potatoes can work, but frozen hash browns are simpler and more consistent. If using fresh ones, shred, par-cook, and dry them first.
→ How should I keep leftovers?
Place leftovers in the fridge in a sealed container for up to three days. Crispy onions might soften, so reheating in the oven is best.

Onion Casserole

A fun spin on cheesy potato casseroles with a creamy onion sauce and crispy fried onions on top. Pure comfort in a dish.

Prep Time
20 Minutes
Cook Time
50 Minutes
Total Time
70 Minutes
By: Maria

Category: Vegetarian

Difficulty: Intermediate

Cuisine: American

Yield: 12 Servings (12 servings)

Dietary: Vegetarian

Ingredients

01 Hash browns, cubed and thawed (32 ounces).
02 Melted butter (1/4 cup/57g, for potatoes).
03 Shredded sharp cheddar (2 cups/226g).
04 Sour cream (1 1/2 cups/345g).
05 Butter, unsalted (1/4 cup/57g, for sauce).
06 Small yellow onion, diced.
07 Garlic cloves, minced (2 teaspoons).
08 Flour, all-purpose (1/4 cup/31g).
09 Salt, kosher (1 teaspoon).
10 Ground black pepper (1/2 teaspoon).
11 Cayenne (1/2 teaspoon).
12 Mustard, dried (1/2 teaspoon).
13 Chicken stock at room temp (1/2 cup/120g).
14 Whole milk at room temp (1/2 cup/122.5g).
15 Thinly sliced large yellow onions (2 or about 4 cups).
16 4 cups of oil, for frying onions.
17 Salt, kosher (1/2 teaspoon, for topping onions).

Instructions

Step 01

Turn your oven to 350°F. In a big bowl, combine hash browns, butter, shredded cheddar, and sour cream.

Step 02

Sauté garlic and onion in melted butter. Stir in seasonings and flour. Whisk in broth and milk until it thickens.

Step 03

Blend the potato mixture with the sauce. Spread the mix into a greased 9x13 pan.

Step 04

Bake it for 45-50 minutes until hot and bubbling.

Step 05

Heat oil to 350°F. Fry onion slices a bit at a time till crispy, around 2-5 minutes. Sprinkle with salt and drain well.

Step 06

Add fried onions on top of the hot casserole and dig in.

Notes

  1. You can make this in advance, but don’t add the onions until serving.
  2. Keep oil at 350°F when frying each batch of onions.

Tools You'll Need

  • Baking dish, 9x13 size.
  • A large pot or saucepan.
  • Oil thermometer.
  • Spoon (slotted) or a strainer.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy.
  • Contains gluten.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 529
  • Total Fat: 38 g
  • Total Carbohydrate: 35 g
  • Protein: 12 g