Chicken Gloria is a retro casserole that will never go out of style!
I love how the juicy chicken and earthy mushrooms bake in a rich sherry cream sauce, soaking up all that deliciousness. And that bubbly, melty Swiss cheese topping? Irresistible!
Honestly, if it were just me, I’d eat straight from the pan.
Whether served with fluffy rice, buttery noodles, or crusty bread, this dish is pure comfort on a plate.

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Why You'll Love This Chicken Gloria
Cozy Classic: This is the kind of creamy, cheesy, savory goodness that soothes the soul. It’s like a warm hug on a plate, just like Mom used to make!
Special Sauce: The magic lies in the homemade sauce. A dreamy blend of sherry, heavy cream, and garlic wrap the chicken in pure, saucy perfection.
Perfect Pairings: I love pairing this chicken dish with homestyle sides. Think buttery mashed potatoes, steamed vegetables, or a green salad. Simple yet delicious!
Ingredients for Chicken Gloria
- Boneless, Skinless Chicken Breasts: I cut the chicken breasts lengthwise for even cooking.
- Olive Oil and Butter: Olive oil to prevent burning when searing and butter for extra flavor.
- Fresh Mushrooms: They add an earthy, meaty texture and absorb the sauce beautifully. White, cremini, or shiitake varieties work well.
- Garlic: Adds depth and aromatics to the cream sauce. I recommend freshly minced garlic for the best flavor.
- All-Purpose Flour: I lightly coat the chicken in flour to develop a light, golden crust when sautéed. I also use it as a thickening agent for the sauce.
- Dry Sherry: A must for the sauce! It adds complex, slightly sweet notes and helps deglaze the pan. I use a drinking-quality sherry, not cooking wine.
- Heavy Cream: Creates a rich sauce that coats the chicken and mushrooms perfectly.
- Swiss Cheese: I love how it melts beautifully to form a golden, gooey crust. Mozzarella, provolone, or muenster cheese are great substitutes.
- Red Pepper Flakes: I add a pinch for a subtle spicy kick. For a milder version, omit it.
- Chopped Fresh Parsley: A light, herbaceous garnish that makes the dish pop.

How to Make Chicken Gloria
What makes this chicken casserole recipe so special? It’s that creamy sauce!
Instead of canned soup, this dish upgrades to a luxurious sherry-infused cream sauce. I know, it sounds fancy, but all it takes are a few more steps.
1. Prep chicken. Preheat the oven to 375°F. Place a rack in the top third of the oven. Slice the chicken breasts in half lengthwise. Season, then dredge in flour.
2. Brown chicken. Sear the halved chicken breasts in olive oil and butter, about 3-4 minutes per side. Transfer to a casserole dish.
3. Saute mushrooms. Saute the mushrooms in butter until golden, about 5 minutes. Add to the casserole dish.
4. Make sauce. Cook the garlic in the remaining butter for 30 seconds. Stir in the flour and cook for 1 minute. Add the sherry and cream, then whisk until smooth. Add the red pepper flakes if using. Simmer for 2-3 minutes.
5. Assemble. Pour the sauce over the chicken and mushrooms. Top with the Swiss cheese slices.
6. Bake. Bake the casserole covered for 20 minutes at 375°F.
7. Broil. Broil the casserole uncovered for 2-3 minutes until the cheese browns.
8. Rest and serve. Let the casserole cool for 5 minutes, garnish with parsley, and serve.

Tips for the Best Chicken Gloria Casserole
Want perfectly tender chicken, a dreamy sauce, and that irresistible bubbly, cheesy topping? Follow my tips:
- Pound the chicken. Use a meat mallet to pound the chicken halves into uniform thickness for even cooking.
- Shake before you bake. My trick to an even coating with less mess? Place the flour and seasonings in a zip-top bag with the chicken pieces and shake.
- Don’t overcook the chicken. The chicken will continue to cook in the sauce. So sear it until golden but not fully cooked through. That way, it stays juicy.
- Mix up the mushrooms. I often use shiitake or cremini mushrooms for deeper, earthier flavors. White button mushrooms are also great for a milder taste.
- Swap the sherry. If you don’t have dry sherry, dry white wine or chicken broth will work. However, the flavor will be different.
- Thin the sauce. If the sauce feels too thick, thin it with a splash of chicken broth or milk as needed. Do so before pouring it over the chicken.
- Take a shortcut. Short on time? Replace the homemade sauce with cream of mushroom soup. Or, use cream of chicken soup with sauteed mushrooms. It won’t be exactly the same, but it will still taste great.

How to Store
This creamy chicken casserole stores beautifully. So you can enjoy its cheesy, savory goodness later.
Keep in mind, the texture may change when freezing. After thawing, the cream sauce can separate slightly, and the mushrooms might soften. Still, I’ve reheated this dish plenty of times from frozen, and it was still delicious!
To Store: Place the cooled leftovers in an airtight container. Refrigerate for up to 3-4 days.
To Freeze: Transfer cooled leftovers to a freezer-safe container. Freeze for up to 2 months. Thaw overnight in the refrigerator.
To Reheat: For individual portions, warm in the microwave for 2-3 minutes. For larger servings, reheat in a covered casserole dish in a 350°F oven for 15-20 minutes until heated through. Stir occasionally during reheating to prevent the sauce from breaking.















2 Comments
Loved this so much, will definitely be putting this on my repeat list ❤️❤️. Do you have a recipe for air fryer Brussel sprouts???
love it!! thanks for sharing.