Keto Turkey Biscuit Casserole: The “Gobbler Cobbler” That Saves Your Holiday Leftovers 🦃🥄

Right, so you’ve survived Thanksgiving… but now you’re staring down a fridge full of leftover turkey wondering how many more sad, dry sandwiches you can force down before you lose the will to live. Sound familiar? I get it. This Keto Turkey Biscuit Casserole—or as I like to call it, the “Gobbler Cobbler” (yes, it’s a bit daft, but it stuck)—is exactly the answer you need.

This dish takes your leftover turkey, wraps it in a rich, herby gravy, and tops the whole lot with fluffy almond flour biscuits that puff up like little clouds of joy. It’s comfort food that fits perfectly into a ketogenic diet, keeps you firmly in ketosis, and honestly tastes better than the original meal, IMO 😋.

Whether you’re following a strict low carb diet or just trying to make sensible choices during the holiday chaos, this recipe ticks every box. It’s suitable for keto, low carbohydrate, gluten-free, and grain-free lifestyles. Perfect for dinner, but I won’t judge you if you eat it for lunch three days running (I certainly have).

#KetoTurkeyCasserole #GobblerCobbler #LowCarbLeftovers #KetoThanksgiving #HighFatDiet #KetogenicRecipes #LowCarbComfortFood #KetoHolidayRecipes #TurkeyBiscuitBake #KetoCasseroleRecipe

JUMP TO RECIPE

Quick Stats: What You’re Signing Up For

• Prep Time: 20 minutes
• Cook Time: 40 minutes
• Total Time: 60 minutes
• Servings: 8 (at 6 oz each)
• Calories: ~380 per serving
• Macros: 32g fat, 8g net carbs, 22g protein
• Difficulty: Easy-to-moderate (nothing you can’t handle)

Equipment Needed

You don’t need anything fancy here, but a few key pieces make life easier:

• Dutch oven or large skillet – for building your gravy base (any heavy-bottomed pot works)
• 9×13 inch baking dish – or similar casserole dish
• Whisk – for that silky gravy texture
• Pastry blender or your hands – for cutting butter into the biscuit dough (I’m a hands person myself… more tactile)
• Pastry brush – optional, but great for that golden biscuit top

Ingredients You’ll Need

For the Turkey Gravy Base

• 4 tbsp butter 🧈
• ¼ onion, finely chopped
• 1 cup mushrooms, chopped (cremini, button, or portobello—your call)
• ¼ cup almond flour
• 1 tsp arrowroot powder (optional, for silkiness)
• 2 cups chicken broth
• 2 tsp fresh herbs, chopped (rosemary, thyme, sage—whatever you fancy)
• ⅔ cup heavy cream
• 3 cups cooked turkey, chopped 🦃
• 1 cup green beans (canned, frozen, or fresh)

For the Biscuit Topping

• 1.5 cups almond flour
• 1 tbsp garlic powder
• 1.5 tsp baking powder
• 3 tbsp butter, extremely cold and cubed
• 1 large egg 🥚
• ¼ cup heavy cream
• 2 tsp butter, melted (for brushing)
• Fresh or dried herbs (optional, for that extra flavor punch)

If you love the biscuit element here, you’ll want to check out my Keto Biscuits recipe too—same principles, different application.

Step-By-Step Instructions

Step 1: Get Your Oven Ready

Preheat your oven to 375°F. Grease a 9×13 inch casserole dish with avocado oil. This isn’t a step you want to skip… trust me, nobody enjoys scraping a casserole dish clean.

Step 2: Build Your Flavor Base

Melt 4 tablespoons of butter in your Dutch oven over medium heat. Add the finely chopped onion and let it soften without browning—we’re building flavor, not caramelizing.

Step 3: Add the Mushrooms

Toss in your chopped mushrooms and let them cook down with the onions for a few minutes. This combo forms the backbone of your gravy’s flavor.

Step 4: Herb It Up

Add your fresh chopped herbs now. Ever wondered why restaurant food tastes better than home cooking? Fresh herbs, mostly. They’re cheap (about $1.99 a pack) and last ages in your fridge, so there’s really no excuse to skip them.

Step 5: Thicken Things Up

Sprinkle in the almond flour and stir it around, letting it cook for a minute to remove any raw flour taste. This step matters more than you’d think for the final texture.

Step 6: Pour in the Broth

Add your chicken broth and bring everything to a low simmer. The almond flour will start thickening the mixture into a proper gravy consistency.

Step 7: Optional Thickening Boost

If you want an extra silky finish, sprinkle in the arrowroot powder now and whisk well. You can skip this or swap in xanthan gum if you prefer—both work.

Step 8: Add the Cream

Turn the heat down slightly and stir in the heavy cream. Let it simmer for a minute to fully incorporate. This is where the gravy transforms into something genuinely luxurious.

Step 9: Turn Off the Heat, Add Turkey

Remove from heat and stir in your chopped turkey and green beans (or whatever leftover veggies you’ve got kicking around). Give it all a good stir.

Step 10: Make the Biscuit Dough

In a separate bowl, combine almond flour, garlic powder, and baking powder. FYI—check your baking powder’s expiration date, especially around the holidays when you’re baking more than usual. Old baking powder is a silent recipe killer.

Step 11: Cut in the Butter

Add your cold, cubed butter and work it into the flour mixture using your fingers (or a pastry blender if you’re squeamish about butter hands). You want small chunks remaining—not a smooth paste. Those little pockets of butter create steam pockets that make your biscuits fluffy.

Step 12: Combine Wet Ingredients

Make a well in the center of your dry mixture. Whisk the egg with the heavy cream, then pour it into the well.

Step 13: Bring the Dough Together

Using a fork (not a spoon—seriously, this matters), gently combine everything until just incorporated. Overworking the dough kills the fluffiness, so stop as soon as it comes together.

Step 14: Assemble Your Casserole

Pour the turkey gravy mixture into your prepared baking dish, spreading it evenly. Then dollop spoonfuls of biscuit dough randomly across the top—rustic is the goal here, not perfection.

Step 15: Butter and Bake

Melt 2 tsp butter and mix with a pinch of poultry seasoning. Brush this over your biscuit tops for extra golden color and flavor. Bake at 375°F for 35-45 minutes, depending on your oven.

Step 16: Rest Before Serving

Let the casserole sit for 15 minutes once it’s out of the oven. This isn’t optional—the gravy needs time to set properly, or you’ll end up with a soupy mess on your plate.

Batch Cooking Tip

Want to double this recipe? Simply use two casserole dishes rather than one giant one—the biscuits cook more evenly this way. You can also freeze the gravy base separately from the biscuit dough and assemble fresh when ready to bake.

Serving & Presentation

Serve this straight from the casserole dish for that cozy, family-style feel—nobody needs fancy plating for comfort food like this. A sprinkle of fresh chopped parsley or thyme on top adds a nice pop of color and freshness.

For a complete leftover-turkey feast, pair this with a side of Keto Green Bean Casserole or a simple Keto Cranberry-adjacent sauce if you’re feeling fancy.

This dish works brilliantly for casual family dinners, post-holiday gatherings, or even a cozy Sunday lunch when you want something hearty without the fuss. Honestly, I think it tastes even better the day after Thanksgiving than the original meal did—don’t tell anyone I said that though 😉.

How to Store Your Gobbler Cobbler

Refrigerator: Store in an airtight container for up to 4 days. The biscuits soften slightly but still taste great.

Freezer: This casserole freezes well for up to 3 months. Wrap tightly or use a freezer-safe container.

Reheating:

• Oven: Cover with foil and reheat at 350°F for 15-20 minutes until warmed through.
• Microwave: Heat individual portions for 1-2 minutes, though the biscuits won’t stay as crisp.
• On-the-go: Pack portions into meal prep containers for easy grab-and-go lunches throughout the week.

Why This Recipe Actually Works

This casserole nails the classic comfort-food experience while staying firmly within keto diet parameters. The almond flour biscuits provide that satisfying carb-like texture without spiking your blood sugar—something I genuinely appreciate after years of watching clients struggle with traditional flour-based comfort foods.

The high-fat diet approach here isn’t just about hitting macros—it’s about satiety. Between the heavy cream, butter, and turkey, you’re getting a meal that actually keeps you full for hours, unlike the carb-loaded version that leaves you snacking an hour later.

Notable perks of this recipe:

• High-protein from the turkey (great for muscle maintenance, especially important as we age)
• Gluten-free and grain-free throughout
• Low carbohydrate, keeping you solidly in ketosis
• Uses up leftovers efficiently, reducing food waste (your wallet says thanks)
• Fresh herbs provide antioxidants and flavor without added carbs

I’ve found that women especially benefit from recipes like this—high in protein and healthy fats without the bloating that comes from processed, carb-heavy leftovers casseroles. It’s a smart way to support hormonal balance during stressful holiday periods too.

Common Mistakes to Avoid

Overworking the biscuit dough 🙅‍♂️ – This kills the fluffy texture. Mix just until combined, no more.

Skipping the rest period – I know you’re hungry, but that 15-minute rest lets the gravy set properly. Skip it and you’ll have soup, not casserole.

Using warm butter for biscuits – Cold butter is essential for creating those steam pockets that make biscuits rise properly. If your butter’s warm, your biscuits will be flat and sad.

Not tasting your gravy before assembly – Season as you go! Add salt, pepper, or extra herbs to the gravy base before pouring it into the dish.

Old baking powder – This one catches people out constantly. If it’s been sitting in your cupboard since last Christmas, replace it now.

Substitutions & Alternatives

No turkey? Chicken works perfectly here—honestly, most people can’t tell the difference once it’s covered in gravy 🐔.

Budget option: Skip the fresh herbs if needed and use dried herbs at half the quantity. It won’t be quite as vibrant, but it’ll still taste good.

Dairy-free adjustment: Swap heavy cream for full-fat coconut cream, though the flavor profile shifts slightly toward coconut.

Lower fat option: Reduce butter in the biscuit topping to 2 tablespoons if you’re watching fat intake for specific health goals, though the texture will be less flaky.

Vegetable swap: Any leftover holiday vegetables work here—Brussels sprouts, cauliflower, or broccoli all pair nicely with the gravy base.

For more turkey-based inspiration, check out Keto Turkey Pot Pie or Keto Turkey Gravy if you want a standalone gravy recipe.

Frequently Asked Questions

Q: Can I make this ahead of time?

A: Yes! Prepare the gravy base and biscuit dough separately, then assemble and bake when ready. This actually works brilliantly for meal planning.

Q: Why did my biscuits come out dense instead of fluffy?

A: Most likely culprits are overworked dough or warm butter. Keep everything cold and mix minimally.

Q: Can I use rotisserie chicken instead of leftover turkey?

A: Absolutely. This recipe works year-round with any cooked poultry you’ve got on hand.

Q: Is this recipe suitable for meal prep?

A: Definitely. It stores well and reheats nicely, making it perfect for batch cooking on Sundays.

Q: Can I add other vegetables?

A: Yes, any low-carb vegetable works here. Broccoli, cauliflower, or Brussels sprouts all complement the flavor profile nicely.

Final Thoughts

This Keto Turkey Biscuit Casserole solves the eternal post-holiday problem: too much turkey, not enough enthusiasm for eating it plain. The combination of rich, herby gravy and fluffy almond flour biscuits transforms boring leftovers into something you’ll actually look forward to eating.

Whether you’re deep into your ketogenic diet journey or simply trying to reduce food waste while eating well, this recipe delivers on both fronts. For more comfort food inspiration that fits a low carb diet, check out our full collection of keto recipes.

Give it a go, and don’t be surprised if you’re making this intentionally next time, turkey leftovers or not 🦃✨.

Next Recipes To Try

• Keto Chicken and Dumplings
• Keto Turkey Chili
• Keto Chicken Pot Pie
• Keto Breakfast Casserole

keto turkey biscuit casserole

Yield: 8 servings

Prep Time: 20 minutes

Cook Time: 20 minutes

Additional Time: 40 minutes

Total Time: 1 hour 20 minutes

A comforting way to use up Thanksgiving leftovers, this Keto Turkey Biscuit Casserole combines rich herby turkey gravy with fluffy almond flour biscuits on top. Perfect for the keto diet, this low-carb comfort food transforms boring leftover turkey into a meal you'll actually look forward to eating.

No Ratings

Print

Ingredients

• 4 tbsp butter
• 1/4 onion, finely chopped
• 1 cup mushrooms, chopped
• 1/4 cup almond flour
• 1 tsp arrowroot powder
• 2 cups chicken broth
• 2 tsp chopped fresh herbs
• 2/3 cup heavy cream
• 3 cups turkey, cooked and chopped
• 1 cup green beans
• 1.5 cups almond flour (biscuit topping)
• 1 tbsp garlic powder
• 1.5 tsp baking powder
• 3 tbsp butter, extremely cold and diced
• 1 large egg
• 1/4 cup heavy cream (biscuit topping)
• 2 tsp butter, melted

Instructions

1. Preheat Oven: Preheat oven to 375°F and grease a 9x13 inch casserole dish with avocado oil.
2. Sauté Base: Melt 4 tbsp butter in a Dutch oven. Add chopped onion and cook until translucent, without browning.
3. Add Mushrooms: Stir in chopped mushrooms and cook for a few minutes until softened.
4. Add Herbs: Mix in fresh chopped herbs and seasoning of choice.
5. Thicken: Sprinkle in almond flour, stirring to cook off raw flour taste for about a minute.
6. Add Broth: Pour in chicken broth and bring to a low simmer, allowing mixture to thicken.
7. Optional Thickener: Whisk in arrowroot powder if desired for extra silkiness.
8. Add Cream: Reduce heat slightly and stir in heavy cream, simmering briefly to combine.
9. Add Turkey and Veggies: Turn off heat and stir in chopped turkey and green beans.
10. Make Biscuit Dough: In a separate bowl, combine almond flour, garlic powder, and baking powder.
11. Cut in Butter: Work cold cubed butter into dry mixture using fingers until sandy with small chunks remaining.
12. Combine Wet Ingredients: Make a well in center, whisk egg with heavy cream, then pour into well.
13. Form Dough: Using a fork, gently combine until just incorporated without overworking.
14. Assemble: Pour turkey gravy mixture into prepared dish. Dollop biscuit dough randomly across top.
15. Brush and Bake: Brush biscuit tops with melted butter mixed with poultry seasoning. Bake 35-45 minutes until golden and bubbly.
16. Rest: Let casserole rest for 15 minutes before serving.

Notes

For best texture, ensure butter for biscuits stays extremely cold until mixing. Fresh herbs significantly elevate flavor but dried herbs work in a pinch at half the quantity. This recipe works with any leftover cooked poultry, not just turkey.

Nutrition Information

Yield 8 Serving Size 6 oz
Amount Per Serving Calories 380Total Fat 32gSaturated Fat 16gTrans Fat 0gUnsaturated Fat 14gCholesterol 95mgSodium 420mgCarbohydrates 10gNet Carbohydrates 8gFiber 2gSugar 3gProtein 22g