This oven-baked dish features tender chicken breasts smothered in a rich, velvety Dijon cream sauce seasoned with garlic and dried thyme. Topped with a blend of melted mozzarella and Parmesan, the chicken develops a savory, golden crust while the sauce remains smooth and bubbling. It is a warm, comforting meal that highlights the sharp tang of mustard balanced by the richness of heavy cream.

About This Recipe

The kitchen fills with the savory aroma of garlic and thyme as the cream sauce reduces and thickens in the heat of the oven. Each chicken breast is fully enveloped in a pale, mustard-flecked glaze that stays moist under a layer of bubbling cheese. The golden-brown surface of the melted mozzarella provides a slight pull that contrasts with the softness of the meat and the liquid base.

The flavor is defined by the bold, vinegary notes of Dijon mustard, which are mellowed by the sweetness of the heavy cream and the earthy depth of the onion powder. Dried thyme provides a subtle herbal fragrance that carries through the entire dish, while the addition of Parmesan adds a sharp, salty finish to the crust. As the juices from the chicken meld with the sauce, it creates a savory gravy that pools around the base of the baking dish.

This meal is typically served directly from the oven to ensure the cheese remains stretchy and the sauce stays perfectly emulsified. It is a visually appealing dish, with the vibrant green of dried herbs scattered across the toasted cheese surface. The combination of a sharp mustard bite and a luxurious, creamy texture makes it well suited for a quiet evening dinner.

Why You’ll Love This Recipe

Creamy, rich sauce with balanced Dijon flavor
Oven-baked and hands-off once assembled
No flour, starch, or added sugars
Chicken stays tender and juicy
Simple ingredient list
Easy to scale for family dinners
Reheats well without separating

What You’ll Need for This Keto Pumpkin Pie Martini

2 lb boneless, skinless chicken breasts
1 ½ cups heavy cream
¼ cup Dijon mustard
2 cloves garlic, minced
1 tsp onion powder
1 tsp dried thyme
½ tsp salt
½ tsp black pepper
½ cup shredded mozzarella cheese
2 tbsp grated Parmesan cheese
1 tbsp olive oil

Step-by-Step Preparation

Preheat the oven to 375°F and lightly grease a baking dish with olive oil.
Arrange the chicken breasts evenly in the prepared baking dish.
In a mixing bowl, whisk together heavy cream, Dijon mustard, garlic, onion powder, dried thyme, salt, and black pepper until smooth.
Pour the Dijon cream sauce evenly over the chicken, ensuring each piece is well coated.
Sprinkle mozzarella and Parmesan cheese evenly over the top.
Bake uncovered for 35–40 minutes, or until the chicken is fully cooked and the sauce is bubbling and lightly thickened.
Let rest for 5 minutes before serving to allow the sauce to set.

FAQ

Can I use chicken thighs instead of breasts?
Yes, boneless skinless chicken thighs work well and will be slightly juicier.
Is Dijon mustard spicy?
No, Dijon mustard adds tang and depth rather than heat.
Will the sauce thicken without flour?
Yes, heavy cream naturally thickens as it bakes and reduces.
Can this dish be made ahead of time?
Yes, assemble it in advance and bake when ready to serve.
Does this recipe freeze well?
It can be frozen, but the sauce may change texture slightly when reheated.

Variations & Substitutions

Add sliced mushrooms for extra depth
Use whole-grain mustard for a more textured sauce
Swap thyme for rosemary or tarragon
Add cooked bacon crumbles for a savory boost
Finish with fresh parsley before serving

Serving Suggestions

Serve with roasted cauliflower
Pair with sautéed zucchini or green beans
Add a simple side salad with olive oil dressing

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