I can’t get over how three simple layers turn into a rich, cheesy Southern classic that feels completely indulgent while staying keto. This Kentucky hot brown casserole is the kind of dinner that disappears fast.

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I’m obsessed with this Keto Kentucky Hot Brown Casserole because it takes that big, messy Southern classic and turns it into a fork-only situation I can actually crave on a weeknight. I love the stacked layers, the rich cheesy bite, the crisp edges, and the way turkey and bacon make every scoop feel loaded without being heavy on carbs.

But the best part? It tastes bold, salty, creamy, and a little over-the-top in the best way.

And it’s ready fast enough that I don’t have to save it for some special dinner. Just real food, big flavor, no fuss.

Ingredients

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Turkey makes it hearty and keeps the casserole firmly in comfort-food territory.
Low carb bread soaks up the sauce without kicking you out of keto.
Crispy bacon brings salty crunch, because honestly, this dish needs it.
Tomatoes add freshness and cut through all that rich, cheesy goodness.
Butter gives the sauce that cozy, old-school diner feel.
Almond flour helps thicken things without regular flour sneaking in.
Heavy cream makes the sauce silky, rich, and very keto-friendly.
Chicken broth keeps the sauce from feeling too heavy or gloopy.
Dijon mustard adds a tiny tang that wakes everything up.
Gruyere melts beautifully and tastes a little nutty, in the best way.
Sharp cheddar brings bold cheese flavor you’ll actually notice.
Parmesan adds salty bite and helps the top taste extra savory.
Plus, nutmeg gives the cream sauce a warm little background note.
Basically, parsley makes the whole thing look less beige and more fresh.

Ingredient Quantities

1 pound cooked turkey, shredded or cubed

8 ounces low carb bread, cubed (store bought or homemade almond flour bread)

8 slices bacon, cooked crisp and roughly chopped

2 medium tomatoes, thinly sliced

2 tablespoons unsalted butter

2 tablespoons almond flour (for thickening the sauce)

1 cup heavy cream

1/2 cup low-sodium chicken broth

1 teaspoon Dijon mustard

1 cup shredded Gruyere cheese

1 cup shredded sharp cheddar cheese

1/2 cup grated Parmesan cheese

Salt and freshly ground black pepper, to taste

1/4 teaspoon ground nutmeg, optional

2 tablespoons chopped fresh parsley, for garnish

1/2 teaspoon xanthan gum, optional for extra thickening

How to Make this

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1. Preheat oven to 375 F and grease a 9×13 inch baking dish.

2. Scatter cubed low carb bread evenly across the bottom of the dish.

3. Layer the cooked turkey over the bread, then arrange tomato slices on top of the turkey.

4. In a medium saucepan, melt butter over medium heat, whisk in almond flour and cook 30 to 60 seconds until fragrant.

5. Gradually whisk in heavy cream and chicken broth, then add Dijon mustard, nutmeg if using, and bring to a gentle simmer until slightly thickened, about 3 to 5 minutes. If using xanthan gum, sprinkle it in very sparingly while whisking to avoid clumps and thicken to desired consistency.

6. Stir in half of the Gruyere, half of the cheddar, and half of the Parmesan into the sauce until melted and smooth; season with salt and freshly ground black pepper to taste.

7. Pour the cheese sauce evenly over the layered bread, turkey, and tomatoes.

8. Sprinkle the remaining Gruyere, cheddar, and Parmesan over the top, then scatter the chopped crisp bacon across the casserole.

9. Bake 20 to 25 minutes until sauce is bubbly and cheese is golden; for a browned top, broil 1 to 2 minutes while watching closely.

10. Remove from oven, let rest 5 minutes, garnish with chopped fresh parsley, slice and serve.

Equipment Needed

1. Oven and 9×13 inch baking dish
2. Medium saucepan
3. Whisk
4. Mixing bowl
5. Measuring cups and measuring spoons
6. Chef s knife and cutting board
7. Cheese grater
8. Wooden spoon or heatproof spatula
9. Frying pan for bacon (or sheet pan if baking bacon)

FAQ

Can I make this dairy free or lower in dairy? Yes. Substitute heavy cream with full fat coconut milk and use dairy free cheeses or omit the Gruyere and Parmesan, though texture and flavor will differ. A dairy free butter substitute can replace the butter.

What is the best way to keep the sauce thick without almond flour? Use 1/2 to 1 teaspoon xanthan gum sprinkled into the warm cream while whisking to avoid lumps, or simmer the sauce a few minutes longer to reduce until it coats the back of a spoon.

How do I store and reheat leftovers? Refrigerate in an airtight container for up to 3 days. Reheat individual portions in a 350 F oven until warmed through, about 15 to 20 minutes, or microwave covered in short bursts, stirring halfway. Add a splash of cream or broth if the casserole seems dry.

Can I use leftover rotisserie chicken instead of turkey? Yes. Rotisserie chicken works very well and keeps the recipe quick and convenient. Use the same amount by weight.

How can I keep the casserole extra crispy on top? Sprinkle a little extra shredded cheddar or Parmesan during the last 5 minutes of baking and broil briefly on low until golden. Watch carefully to prevent burning.

Is this recipe still keto friendly with the bread and tomatoes? Yes if you choose low carb bread and use moderate tomato slices. Adjust portion size to fit your daily carb target. Omitting or reducing the bread lowers net carbs further.

Keto Kentucky Hot Brown Casserole Recipe Substitutions and Variations

Cooked turkey: Rotisserie or shredded roast chicken; leftover ham or smoked turkey for a bolder flavor.
Low carb bread: Cloud bread or sliced cauliflower bread; large grilled portobello mushroom caps for a breadless option (watch moisture).
Bacon: Pancetta or prosciutto for a similar savory punch; turkey bacon for lower fat but milder taste.
Gruyere cheese: Emmental or Swiss cheese for a close flavor and melt; Fontina for creamier texture.

Pro Tips

1. Crisp the bacon extra well and pat it dry before adding; the crunch and concentrated flavor cut through the rich cheese sauce and keeps the topping from becoming soggy.
2. Lightly toast the low carb bread cubes first so they hold their shape and soak up sauce without turning mushy; a 8 to 10 minute roast at 350 F will add structure and a pleasant toasty note.
3. Whisk the cream mixture constantly while bringing it up to a simmer, and add the cheese off the heat in small batches so it melts smoothly and the sauce stays silky rather than grainy.
4. If using xanthan gum, sprinkle it into the whisking sauce very gradually and turbulence the surface with the whisk as you add it to avoid clumping; a little goes a long way so start with half the amount and adjust.
5. Let the casserole rest for at least five minutes after baking so the sauce sets slightly, making cleaner slices and a better mouthfeel.

Keto Kentucky Hot Brown Casserole Recipe

Recipe by Sammy Hunter

0.0 from 0 votes

Servings

servings

Calories

754

kcal

Equipment: 1. Oven and 9×13 inch baking dish
2. Medium saucepan
3. Whisk
4. Mixing bowl
5. Measuring cups and measuring spoons
6. Chef s knife and cutting board
7. Cheese grater
8. Wooden spoon or heatproof spatula
9. Frying pan for bacon (or sheet pan if baking bacon)

Ingredients

1 pound cooked turkey, shredded or cubed
8 ounces low carb bread, cubed (store bought or homemade almond flour bread)
8 slices bacon, cooked crisp and roughly chopped
2 medium tomatoes, thinly sliced
2 tablespoons unsalted butter
2 tablespoons almond flour (for thickening the sauce)
1 cup heavy cream
1/2 cup low-sodium chicken broth
1 teaspoon Dijon mustard
1 cup shredded Gruyere cheese
1 cup shredded sharp cheddar cheese
1/2 cup grated Parmesan cheese
Salt and freshly ground black pepper, to taste
1/4 teaspoon ground nutmeg, optional
2 tablespoons chopped fresh parsley, for garnish
1/2 teaspoon xanthan gum, optional for extra thickening

Directions

Preheat oven to 375 F and grease a 9×13 inch baking dish.
Scatter cubed low carb bread evenly across the bottom of the dish.
Layer the cooked turkey over the bread, then arrange tomato slices on top of the turkey.
In a medium saucepan, melt butter over medium heat, whisk in almond flour and cook 30 to 60 seconds until fragrant.
Gradually whisk in heavy cream and chicken broth, then add Dijon mustard, nutmeg if using, and bring to a gentle simmer until slightly thickened, about 3 to 5 minutes. If using xanthan gum, sprinkle it in very sparingly while whisking to avoid clumps and thicken to desired consistency.
Stir in half of the Gruyere, half of the cheddar, and half of the Parmesan into the sauce until melted and smooth; season with salt and freshly ground black pepper to taste.
Pour the cheese sauce evenly over the layered bread, turkey, and tomatoes.
Sprinkle the remaining Gruyere, cheddar, and Parmesan over the top, then scatter the chopped crisp bacon across the casserole.
Bake 20 to 25 minutes until sauce is bubbly and cheese is golden; for a browned top, broil 1 to 2 minutes while watching closely.
Remove from oven, let rest 5 minutes, garnish with chopped fresh parsley, slice and serve.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.