If you’re looking for a rich and creamy potato casserole that doesn’t require heavy cream, this Boursin Potato Bacon Casserole is going to be a favorite. Made with sliced Yukon Gold potatoes, crispy bacon, sweet onions, and a smooth Boursin cheese sauce using only milk, this dish is everything you want in a cozy side without the extra richness of cream.
This casserole is perfect for holidays, Sunday dinners, or even as a make-ahead option for gatherings. It’s simple, flavorful, and always gets compliments! Another reader favorite casserole is my Chicken Rice Casserole. So simple for those busy weeknights!
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Why You’ll Love This Potato Casserole
This isn’t your typical scalloped potato dish. It’s even better. Here’s why:
- Creamy without cream – The sauce is made entirely with whole milk and a touch of flour for thickening.
- Precooked potatoes – Soft, fork-tender slices every time — no undercooked bites.
- Bold, herby flavor – The Boursin cheese brings in garlic and herbs with no extra effort.
- Bacon in every bite – Need we say more?
This is one of those recipes that feels fancy but is actually really easy to pull off.
Ingredients You’ll Need
Here’s a quick look at what goes into this dish:
- Yukon Gold potatoes – Creamy and buttery with great structure.
- Onion – Thinly sliced for sweetness and depth.
- Bacon – Cooked until crispy and crumbled.
- Boursin cheese – Garlic & Fine Herbs flavor is our go-to. This is found in your grocers deli fridge area.
- Whole milk – Adds creaminess without the heaviness of cream.
- Flour and butter – A light roux helps the sauce thicken.
- Salt & pepper – Seasoned just right.
- Fresh herbs (optional) – Parsley, chives, or thyme for garnish.
How to Make Boursin Potato Bacon Casserole
This casserole is simple to prepare and bakes up beautifully.
Step 1: Preheat & Prep
Start by preheating your oven to 375°F. Lightly grease a 1 1/2 Quart baking dish with butter or cooking spray.
Step 2: Precook the Potatoes
Add your thinly sliced Yukon Gold potatoes to a large pot of salted water. Bring to a simmer and cook for 5–7 minutes, just until they’re starting to soften. Drain and set aside.
Step 3: Make the Boursin Sauce
In a saucepan over medium heat, melt the butter. Whisk in the flour and cook for 30 seconds. Slowly pour in the milk, whisking constantly. After 2–3 minutes, the mixture should thicken slightly. Stir in the Boursin cheese, salt, and pepper until smooth.
Step 4: Layer the Casserole
Layer half the potatoes in the bottom of your prepared dish. Top with half the onions and half the bacon. Pour on half the cheese sauce. Repeat the layers and finish with the remaining sauce.
Step 5: Bake & Serve
Bake uncovered for 35–40 minutes, or until the top is golden and bubbly. Let it rest for about 10 minutes before serving. Garnish with fresh herbs if you’d like!
Tips for Success
- Use a mandoline for perfectly even potato slices.
- Don’t skip precooking — it helps the potatoes cook evenly and shortens baking time.
- Make ahead by assembling the casserole up to a day in advance and refrigerating until ready to bake.
Can I Use a Different Cheese?
Boursin is the star here, but you could mix in a bit of shredded Gruyère or sharp cheddar for added cheesiness. Just keep the Boursin as your base for that signature flavor.
What to Serve With This Casserole
This dish pairs beautifully with:
- Roast chicken or turkey
- Glazed ham
- Grilled pork chops
- A crisp spinach salad
- Green Bean Casserole
It’s a side that steals the show!
Storage and Reheating
Leftovers can be stored in an airtight container in the fridge for up to 4 days. To reheat, cover and warm in a 350°F oven until hot, or microwave individual portions.
Final Thoughts
This Boursin Potato Bacon Casserole is creamy, cheesy, and completely crave-worthy — and you’ll never miss the heavy cream. It’s a recipe you’ll come back to again and again, especially when you want something special but easy.
📌 Pin it, print it, and try it soon — I can’t wait to hear how you like it!
Here are a few more reader favorite potato recipe:
Stuffed Breakfast Baked Potatoes
Foodie & Griller Apparel You Will Love!
Frequently Asked Questions
Can I make this casserole ahead of time?
Yes, assemble it up to 24 hours in advance. Cover and refrigerate, then bake when ready to serve.
Can I use a different cheese instead of Boursin?
Absolutely! Cream cheese, herbed goat cheese, or garlic and herb cream spread all work as substitutes.
Does this casserole freeze well?
Yes, bake first, let it cool, then freeze. Reheat covered in the oven until warmed through.
Boursin Potato Bacon Casserole
Ingredients
- 2 ½ pounds Yukon Gold potatoes peeled and thinly sliced (about 1/8” thick)
- 1 medium yellow onion thinly sliced
- 8 slices bacon cooked and crumbled
- 5.2 oz Boursin garlic & fine herbs cheese 1 package
- 1 ½ cups whole milk
- 1 Tbsp flour optional, for thickening
- 1 Tbsp butter
- 1 tsp salt
- ½ tsp black pepper
- Butter or cooking spray for greasing dish
- Optional: chopped parsley chives, or thyme for garnish
Instructions
- Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter or cooking spray.
- Place sliced potatoes in a large pot of salted water. Bring to a simmer and cook for 5–7 minutes, just until fork-tender. Drain and set aside.
- In a medium saucepan, melt the butter over medium heat. Whisk in the flour (if using) and cook for 30 seconds.
- Gradually whisk in the milk and cook until slightly thickened, about 2–3 minutes.
- Add the Boursin cheese, salt, and pepper. Stir until melted and smooth. Remove from heat.
- Layer half of the potatoes in the bottom of the prepared baking dish. Top with half of the onions and half of the crumbled bacon. Pour on half the Boursin cheese sauce.
- Repeat the layers with the remaining potatoes, onions, bacon, and sauce.
- Bake uncovered for 35–40 minutes, or until the casserole is golden and bubbling.
- Let rest for 10 minutes before serving. Garnish with fresh herbs, if desired.