Ground Turkey Sweet Potato Casserole

This cozy ground turkey sweet potato casserole combines savory browned turkey, tender sweet potatoes, and a velvety cheese sauce for the ultimate healthy comfort food dinner.

Why This Recipe Works:

• Maillard Reaction Boost: Browning the ground turkey first in olive oil creates deep, savory flavor compounds that offset the natural sweetness of the potatoes.
• Starch Gelatinization Control: Pre-boiling the sweet potatoes slightly ensures they cook evenly in the oven without releasing excess water into the meat layer.
• The Emulsion Binder: A splash of heavy cream and tomato paste emulsifies with the turkey juices, preventing the lean meat from drying out during the bake.

Three years ago, I dragged my heavy cast-iron skillet out of the corner cabinet, determined to make a cozy weeknight dinner. I threw together ground turkey and sweet potatoes, hoping for a rustic hash, but ended up with a dry, crumbly mess. My forearms literally ached from trying to scrape the burnt starch off the bottom of the pan, and I ended up tapping my spatula against the sink in pure frustration.

It was a total disaster.

Here is the thing I wish someone had told me back then: ground turkey is notoriously lean, meaning it lacks the fat needed to lubricate the meat fibers. When you combine that dry protein matrix with the high starch content of sweet potatoes, they essentially team up to suck every drop of moisture out of your skillet. I tested this with four different liquid ratios, and most standard recipes failed because they relied on watery chicken broth that just made the meat soggy. If you want a different take on this pairing, my steak and sweet potato bowls solved this with a zesty drizzle, but for a baked dish, we need a different strategy.

The secret is a touch of tomato paste and heavy cream.

This creates a velvety binder that clings to the turkey. If you love cozy bakes, this is right up there with my cheesy Italian breakfast casserole for pure comfort.

Ground Turkey Sweet Potato Casserole

• Publisher Storied Skillet
• Cuisine American
• Category Dinner, Casseroles
• Prep Time 20 minutes
• Cook Time 40 minutes
• Servings 6
• Calories 380 calories
• Rating 4.8 1755
• Tags ground turkey, sweet potato, casserole, healthy dinner, comfort food

Ingredients

• 2 lbs sweet potatoes, peeled and cut into 1/2-inch cubes
• 1.5 lbs lean ground turkey (85/15 or 93/7)
• 1 tbsp olive oil
• 1 medium yellow onion, finely diced
• 3 cloves garlic, minced
• 2 tbsp tomato paste
• 1.5 tsp Diamond Crystal kosher salt
• 1 tsp smoked paprika
• 1/2 tsp freshly cracked black pepper
• 1/4 cup heavy cream
• 1.5 cups shredded sharp cheddar cheese, divided
• 2 tbsp fresh parsley, chopped (for garnish)

Directions

1. Preheat your oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish with non-stick spray.
2. Place the cubed sweet potatoes in a large pot of salted water, bring to a boil, and cook for 8-10 minutes until fork-tender, then drain and set aside.
3. Heat the olive oil in a large skillet over medium-high heat, add the ground turkey, and cook, breaking it up with a wooden spoon, until browned and no longer pink.
4. Stir in the diced onion and minced garlic, cooking for 3-4 minutes until the onions are translucent and fragrant.
5. Add the tomato paste, Diamond Crystal kosher salt, smoked paprika, and black pepper, stirring constantly for 2 minutes to caramelize the paste and release the oil-soluble flavor compounds.
6. Pour in the heavy cream and half of the cheddar cheese, stirring until a glossy, thick sauce coats the turkey.
7. Gently fold the drained sweet potatoes into the turkey mixture, then transfer everything into the prepared baking dish.
8. Top with the remaining cheddar cheese and bake for 20 minutes until the cheese is melted, bubbly, and golden brown. Garnish with fresh parsley before serving.

Notes

• Salt Conversion: This recipe specifies Diamond Crystal kosher salt. If you are using fine table salt, cut the measurement in half to 3/4 teaspoon to avoid over-salting.
• The Science of Cream: Lean ground turkey lacks the fat matrix of beef. Adding heavy cream coats the proteins, preventing them from tightly binding and squeezing out moisture during the bake.
• Workflow Warning: Keep an eye on the tomato paste when sautéing. If it turns dark brown too quickly, splash in a tablespoon of water to prevent bitter, burnt notes.
• Storage Behavior: As this casserole sits in the fridge, the sweet potatoes will continue to absorb the sauce, making day-two leftovers even more flavorful but slightly denser.
• Skillet Choice: Avoid thin aluminum pans for browning. Use a heavy cast-iron skillet or Dutch oven to maintain even thermal mass and get a better sear on the turkey.

Serving Suggestions

This casserole is incredibly hearty on its own, but pairing it with the right sides can balance the rich, cheesy flavors. Here are a few of my favorite ways to serve it:

• A crisp green salad like this lemon arugula pasta salad to cut through the rich cheese.
• Warm, crusty sourdough bread to scoop up any leftover savory sauce.
• A drizzle of hot honey right before serving for a sweet-spicy kick.
• Roasted green beans or asparagus to add a bright, crunchy contrast to the plate.

Storage and Reheating

Store any leftovers in an airtight glass container in the fridge for up to four days. I actually prefer eating this on day two because the spices have had time to fully penetrate the sweet potatoes.

Do not freeze this.

The dairy in the sauce will separate upon thawing. This leaves you with a watery, grainy texture that is highly unappealing.

To reheat, scoop a portion into an oven-safe dish, splash a teaspoon of water or milk over the top, and bake at 350°F for 10 minutes. Alternatively, microwave on medium power in 30-second bursts to keep the turkey from turning rubbery.

Ingredient Substitutes

If you need to adapt this recipe for dietary needs or pantry limitations, these simple swaps work beautifully without ruining the dish:

1. Ground Turkey: You can easily swap this for ground chicken, lean ground beef, or even bulk Italian sausage.
2. Sweet Potatoes: If you aren't a fan of sweet potatoes, butternut squash or even leftover air fryer sweet potatoes chopped into bites work well. You can also try a summer twist with a southern squash casserole base.
3. Heavy Cream: Full-fat canned coconut milk is an excellent dairy-free alternative that still provides the necessary fat matrix.
4. Cheddar Cheese: Monterey Jack, Pepper Jack, or Gruyère offer a fantastic melt and a slightly different flavor profile.

This has officially entered our permanent winter rotation, and I hope it brings some cozy warmth to your kitchen table too. Let me know if you try it!