Let’s be real—some days, figuring out what to make for dinner feels like one more mountain to climb. You’re tired, the family is hungry, and the last thing you want to do is stand over the stove juggling five pots. That’s why this Creamy Chicken and Mushroom Bake is such a lifesaver. It’s cozy, creamy, packed with flavor, and—best of all—requires minimal effort. Just a few simple steps and you’ve got a warm, delicious dinner that feels like you tried really hard (even if you didn’t).
Whether you’re cooking for picky kids, a partner who loves hearty meals, or just trying to treat yourself to something better than takeout, this dish has your back. It’s like a warm hug in casserole form—everything a good comfort food chicken dinner should be.
Why You’ll Love This Creamy Chicken and Mushroom Bake
If the name alone didn’t sell you, here are a few solid reasons to bookmark this gem of a recipe:
- It’s rich and creamy without being complicated.
- One dish = fewer dishes. Bless.
- It reheats beautifully, making it a perfect make-ahead option.
- Flexible ingredients—you can easily swap or add depending on what you have on hand.
- It’s the perfect example of an easy creamy chicken recipe that delivers big flavor with simple steps.
Oh, and it makes your kitchen smell absolutely divine. That counts for something, right?
The Ingredients for a Perfect Creamy Chicken and Mushroom Bake
You don’t need a gourmet grocery haul for this one. Most of the ingredients are probably already hanging out in your pantry or fridge.
- 3 skinless, boneless chicken breast halves – you can also use chicken thighs for extra juiciness.
- 1 teaspoon kosher salt
- ¼ teaspoon freshly ground black pepper, or more to taste
- 2 tablespoons olive oil
- 1 medium white onion, chopped
- 2 tablespoons chopped fresh parsley
- 1 teaspoon poultry seasoning
- ¼ teaspoon cayenne pepper – just enough to give it a warm little kick.
- 1 (7 oz) can whole mushrooms, drained (or sub in fresh mushrooms)
- 1 (10.5 oz) can condensed cream of chicken soup
- 1 cup heavy cream – the base of all that luscious, creamy goodness.
- ¼ cup buttermilk – adds a subtle tang that balances out the richness.
- 4 slices Swiss cheese – for that melty, cheesy finish.
✅ Pro Tip: No buttermilk? Mix 1/4 cup milk with 1 teaspoon vinegar or lemon juice, let it sit for 5 minutes, and voilà—DIY buttermilk. Here’s how to make buttermilk at home if you need more help.
How to Make Creamy Chicken and Mushroom Bake
This recipe might sound indulgent, but the actual process is so simple you could do it on autopilot (which, let’s face it, you might be some nights).
Step 1: Season & Preheat
Start by preheating your oven to 350°F (175°C). Season the chicken breasts generously with salt and pepper. That’s your flavor base right there.
Step 2: Sauté Your Aromatics
Heat the olive oil in a large skillet over medium-high heat. Add your chopped onion and cook for about 5 minutes, or until they turn soft and semi-transparent. Stir in the chopped parsley so it gets a chance to bloom in the heat.
Step 3: Brown the Chicken
Place the seasoned chicken into the skillet and brown each side—about 5 minutes per side. You’re not cooking it through yet, just giving it some golden color and sealing in the juices.
Step 4: Layer & Season
Once the chicken is browned, sprinkle it with poultry seasoning and cayenne pepper. Then, transfer it to a 9×13-inch baking dish. Cover the top with your mushrooms (canned or sautéed fresh). Set aside.
Step 5: Make the Sauce
In a medium bowl, combine the condensed cream of chicken soup, heavy cream, and buttermilk. Stir in the sautéed onions and parsley. Pour this creamy, dreamy mixture over the chicken and mushrooms.
Step 6: Add Cheese
Lay the Swiss cheese slices on top, covering the entire surface. Cheese blanket = comfort.
Step 7: Bake It Up
Bake uncovered for 1 hour and 35 minutes. Let it rest for 15 minutes before serving. The result? A bubbling, golden Creamy Chicken and Mushroom Bake that smells and tastes amazing.
Make Your Creamy Chicken and Mushroom Bake Your Own
One of the best things about this oven baked chicken and mushrooms recipe is how customizable it is. Here are a few fun ways to mix it up:
- Add vegetables like spinach, broccoli, or peas before baking to make it a one-dish meal.
- Swap the cheese. Try provolone, mozzarella, or even a sprinkle of parmesan if Swiss isn’t your jam.
- Go low-carb by serving over cauliflower mash or sautéed greens.
- Want more heat? Add a few red pepper flakes to the sauce or use pepper jack cheese instead.
From My Kitchen to Yours
This Creamy Chicken and Mushroom Bake holds a special place in my weekly meal rotation. The first time I made it, it was one of those “let’s clean out the fridge” kind of nights. My youngest declared it “restaurant-level chicken,” and my husband asked if I could make it again tomorrow. It quickly became my go-to for chilly nights, casual company, or whenever I need a win at dinner time.
Honestly, it’s the kind of recipe that makes you feel like you’ve got this whole adulting thing down—even if your laundry pile says otherwise.
FAQs About Creamy Chicken and Mushroom Bake
Can I use fresh mushrooms instead of canned?
Totally! Just sauté them along with the onions so they release their moisture before baking.
Can I freeze Creamy Chicken and Mushroom Bake?
Yes, it freezes well. Just cool completely, cover tightly, and freeze for up to 3 months. Thaw overnight in the fridge and reheat in the oven at 325°F until warmed through.
How do I store leftovers?
Keep leftovers in an airtight container in the fridge for 3-4 days. Reheat in the microwave or oven with a splash of milk or cream to bring the sauce back to life.
Can I make this ahead?
Absolutely. You can assemble the entire dish a day ahead, refrigerate, and bake when ready. It’s perfect for busy nights or when you want to prep in advance.
What to Serve With Creamy Chicken and Mushroom Bake
This chicken mushroom casserole is rich and filling on its own, but it also plays well with others:
- Fluffy white or brown rice
- Newk’s Chicken Salad Recipe
- Mashed potatoes or cauliflower mash
- Garlic bread or warm dinner rolls
- Steamed green beans, roasted carrots, or a crisp garden salad
And for dessert? You can’t go wrong with something homey like classic peach cobbler or easy apple crisp—two of my all-time favorites.
Looking for another hearty dinner idea? You’ll love this chicken tetrazzini casserole—another creamy classic packed with flavor!
More Recipes Like Creamy Chicken and Mushroom Bake
If this dish made your day a little easier (or tastier), here are a few more reader favorites from the blog:
- Creamy Chicken Alfredo Bake
- Chicken and Broccoli Rice Casserole
- Cheesy Baked Ziti with Sausage
Bookmark them, pin them, or print them—because every home cook needs a few “I got this” recipes in their back pocket.
When dinner feels like one more thing on your never-ending to-do list, let this Creamy Chicken and Mushroom Bake come to the rescue. It’s simple, comforting, and oh-so-satisfying. So pour a glass of wine (or tea, no judgment), pop this in the oven, and enjoy the kind of meal that makes you feel like a kitchen rock star—without the stress.