Best Ground Turkey Breakfast Casserole

If you ask me, breakfast casseroles are one of the smartest ways to feed a crowd.

This hearty ground turkey casserole makes a filling breakfast that’s loaded with protein and flavor. Seasoned turkey and hash browns mix with melted cheddar cheese in a creamy egg custard.

The turkey gets cooked with diced onions and jalapeno paste for a kick of heat. Fresh chives add a mild onion flavor throughout, and the whole thing bakes up golden and bubbly.

It’s a make-ahead dish that works great for weekend brunch or meal prep, keeping everyone satisfied until lunch.

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What Kind of Ground Turkey Should I Use?

For this breakfast casserole, you’ll want to pick up ground turkey that’s labeled 93/7 or 85/15 (lean to fat ratio). The 93/7 is leaner and works great if you’re watching calories, but the 85/15 has a bit more fat which means more flavor and moisture in your casserole. Either way, make sure you’re buying ground turkey and not ground turkey breast, which can be too dry for this recipe. If you can only find the super lean turkey breast variety, don’t worry – just add an extra teaspoon of oil when you’re browning it to keep things from getting too dry.

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Options for Substitutions

This breakfast casserole is pretty forgiving when it comes to swaps:

• Ground turkey: You can easily swap ground turkey for ground chicken, ground beef, or breakfast sausage. If using sausage, you might want to reduce the salt since it’s already seasoned.
• Jalapeno paste: Don’t have jalapeno paste? Use 1-2 fresh jalapenos (seeded and diced) or a few dashes of hot sauce instead. You can also skip it entirely if you prefer a milder casserole.
• Hash browns: Frozen shredded hash browns work great, but you can also use tater tots or even diced fresh potatoes. If using fresh potatoes, parboil them for about 5 minutes first so they cook through properly.
• Cheddar cheese: Feel free to use whatever cheese you have on hand – Monterey Jack, pepper jack, Swiss, or a Mexican blend all work well here.
• Milk: Whole milk gives the best texture, but you can use 2%, half-and-half, or even unsweetened almond milk if needed.
• Chives: Green onions or fresh parsley make good substitutes if you don’t have chives around.

Watch Out for These Mistakes While Baking

The biggest mistake when making this breakfast casserole is not fully cooking the ground turkey before adding it to the egg mixture – make sure it’s browned all the way through with no pink remaining, as it won’t cook much more in the oven.

Another common error is skipping the resting period after baking, which causes the casserole to fall apart when you try to slice it, so give it the full 10 minutes to set up properly.

If your casserole turns out watery, you likely didn’t squeeze excess moisture from the hash browns before mixing them in, or you used frozen hash browns without thawing them first.

To get perfectly cooked eggs throughout, whisk them really well with the milk before combining with the other ingredients, and make sure your oven temperature is accurate by using an oven thermometer.

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What to Serve With Ground Turkey Breakfast Casserole?

This hearty breakfast casserole is pretty filling on its own, but I love serving it with some fresh fruit on the side to balance out all the savory flavors. A simple fruit salad with berries, melon, and grapes works great, or you can just slice up some oranges or grapefruit for a citrusy kick. If you want to add more to the table, some buttered toast or warm flour tortillas are perfect for scooping up extra bites of the casserole. For a weekend brunch spread, consider adding some salsa or hot sauce on the side for people who like extra heat, and maybe a dollop of sour cream or Greek yogurt to cool things down.

Storage Instructions

Store: This breakfast casserole is a meal prep dream! Once it’s cooled down, cover it tightly with foil or plastic wrap and keep it in the fridge for up to 4 days. You can also slice it into individual portions and store them in separate containers for easy grab-and-go breakfasts throughout the week.

Freeze: You can definitely freeze this casserole for later. Cut it into portions, wrap each piece in plastic wrap, then place them all in a freezer bag or container. It’ll stay good for up to 3 months, which is perfect when you want a homemade breakfast without all the morning work.

Reheat: To warm up your casserole, pop a slice in the microwave for about 1-2 minutes, or heat it in the oven at 350°F for 10-15 minutes until it’s warmed through. If you’re reheating from frozen, let it thaw in the fridge overnight first for the best results.

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 2500-2700
• Protein: 170-190 g
• Fat: 170-190 g
• Carbohydrates: 70-85 g

Ingredients

For the turkey mixture:

• 2.5 tsp oil (I suggest using Pompeian avocado oil for its high smoke point)
• 1 lb ground turkey
• 1/2 cup onion (diced into small 1/4-inch pieces)
• 1 tbsp jalapeno paste
• 1.5 tbsp chives
• 1/4 tsp black pepper

For the egg base:

• 1/2 lb hash browns (I prefer Ore-Ida shredded potatoes for the best texture)
• 1.75 cups cheddar cheese
• 8 eggs
• 1 cup milk (use whole milk for an extra creamy and rich custard)
• 1 tbsp jalapeno paste
• 1.5 tbsp chives
• 2 tsp salt

For the topping:

• 0.75 cup cheddar cheese (freshly grated from a block melts much better than pre-shredded)

Step 1: Prepare Mise en Place and Preheat Oven

• 9×13 inch baking dish
• 1/2 cup onion, diced
• 1 lb ground turkey
• 1/2 lb hash browns
• 2.5 cups total cheddar cheese
• 8 eggs
• 1 cup milk
• 2 tbsp jalapeno paste
• 3 tbsp chives
• 1/4 tsp black pepper
• 2 tsp salt

Preheat your oven to 375°F and lightly grease a 9×13 inch baking dish with cooking spray or butter.

While the oven heats, dice your onion into small 1/4-inch pieces and measure out all your ingredients: the ground turkey, hash browns, cheddar cheese (I recommend freshly grating your cheese from a block rather than using pre-shredded—it melts so much more evenly and creates a better texture), eggs, milk, jalapeno paste, chives, salt, and black pepper.

Having everything ready before you start cooking will keep the process smooth and efficient.

Step 2: Sear the Ground Turkey with Aromatics

• 2.5 tsp avocado oil
• 1 lb ground turkey
• 1/2 cup onion, diced
• 1 tbsp jalapeno paste
• 1.5 tbsp chives

Heat the avocado oil in a large skillet over medium-high heat until it shimmers.

Add the ground turkey and cook for 2-3 minutes, breaking it up with a spoon as it cooks until it’s mostly browned but still has a bit of moisture.

Add the diced onion and cook for another 1-2 minutes, stirring frequently.

Stir in 1 tablespoon of jalapeno paste and 1.5 tablespoons of chives, cooking for just 30 seconds more to bloom the flavors.

I like to stop cooking the turkey while it’s still slightly moist rather than cooking it completely dry—it’ll finish cooking in the oven and stay more tender in the final casserole.

Step 3: Build the Casserole Base

• seared turkey mixture from Step 2
• 1/2 lb hash browns
• 1.75 cups cheddar cheese
• 8 eggs
• 1 cup milk
• 1 tbsp jalapeno paste
• 1.5 tbsp chives
• 1/4 tsp black pepper
• 2 tsp salt

In a large mixing bowl, combine the seared turkey mixture from Step 2 with the hash browns, 1.75 cups of cheddar cheese, eggs, milk, remaining 1 tablespoon jalapeno paste, remaining 1.5 tablespoons chives, black pepper, and salt.

Stir gently but thoroughly until everything is evenly distributed and the eggs are well incorporated—the mixture should look creamy and cohesive.

Pour this entire mixture into your prepared baking dish and spread it evenly with a spatula or wooden spoon.

Step 4: First Bake Covered

• casserole base from Step 3

Cover the baking dish tightly with aluminum foil and place it in your preheated 375°F oven.

Bake for 30 minutes—the foil helps the casserole cook gently and evenly while trapping steam, which keeps the egg custard moist and prevents the top from browning too quickly.

Step 5: Finish Baking with Cheese Topping

• 0.75 cup cheddar cheese

Carefully remove the baking dish from the oven and take off the foil.

Sprinkle the remaining 0.75 cup of freshly grated cheddar cheese evenly over the top of the casserole.

Return it to the oven uncovered and bake for another 20 minutes until the cheese is melted and the top is golden brown.

The casserole is done when the center is set (it should only jiggle slightly when gently shaken) and a knife inserted in the middle comes out clean or with just a few moist crumbs.

Step 6: Rest and Serve

Remove the casserole from the oven and let it rest for 10 minutes before cutting and serving.

This resting time allows the egg custard to set up a bit more, making it easier to cut clean portions and ensuring the casserole holds together beautifully on the plate.

Best Ground Turkey Breakfast Casserole

Delicious Best Ground Turkey Breakfast Casserole recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 25 minutes mins

Cook Time 45 minutes mins

Total Time 1 hour hr 12 minutes mins

Servings 8 servings

Calories 2600 kcal

Ingredients

  

For the turkey mixture::

• 2.5 tsp oil (I suggest using Pompeian avocado oil for its high smoke point)
• 1 lb ground turkey
• 1/2 cup onion (diced into small 1/4-inch pieces)
• 1 tbsp jalapeno paste
• 1.5 tbsp chives
• 1/4 tsp black pepper

For the egg base::

• 1/2 lb hash browns (I prefer Ore-Ida shredded potatoes for the best texture)
• 1.75 cups cheddar cheese
• 8 eggs
• 1 cup milk (use whole milk for an extra creamy and rich custard)
• 1 tbsp jalapeno paste
• 1.5 tbsp chives
• 2 tsp salt

For the topping::

• 0.75 cup cheddar cheese (freshly grated from a block melts much better than pre-shredded)

Instructions

 

• Preheat your oven to 375°F and lightly grease a 9x13 inch baking dish with cooking spray or butter. While the oven heats, dice your onion into small 1/4-inch pieces and measure out all your ingredients: the ground turkey, hash browns, cheddar cheese (I recommend freshly grating your cheese from a block rather than using pre-shredded—it melts so much more evenly and creates a better texture), eggs, milk, jalapeno paste, chives, salt, and black pepper. Having everything ready before you start cooking will keep the process smooth and efficient.
• Heat the avocado oil in a large skillet over medium-high heat until it shimmers. Add the ground turkey and cook for 2-3 minutes, breaking it up with a spoon as it cooks until it's mostly browned but still has a bit of moisture. Add the diced onion and cook for another 1-2 minutes, stirring frequently. Stir in 1 tablespoon of jalapeno paste and 1.5 tablespoons of chives, cooking for just 30 seconds more to bloom the flavors. I like to stop cooking the turkey while it's still slightly moist rather than cooking it completely dry—it'll finish cooking in the oven and stay more tender in the final casserole.
• In a large mixing bowl, combine the seared turkey mixture from Step 2 with the hash browns, 1.75 cups of cheddar cheese, eggs, milk, remaining 1 tablespoon jalapeno paste, remaining 1.5 tablespoons chives, black pepper, and salt. Stir gently but thoroughly until everything is evenly distributed and the eggs are well incorporated—the mixture should look creamy and cohesive. Pour this entire mixture into your prepared baking dish and spread it evenly with a spatula or wooden spoon.
• Cover the baking dish tightly with aluminum foil and place it in your preheated 375°F oven. Bake for 30 minutes—the foil helps the casserole cook gently and evenly while trapping steam, which keeps the egg custard moist and prevents the top from browning too quickly.
• Carefully remove the baking dish from the oven and take off the foil. Sprinkle the remaining 0.75 cup of freshly grated cheddar cheese evenly over the top of the casserole. Return it to the oven uncovered and bake for another 20 minutes until the cheese is melted and the top is golden brown. The casserole is done when the center is set (it should only jiggle slightly when gently shaken) and a knife inserted in the middle comes out clean or with just a few moist crumbs.
• Remove the casserole from the oven and let it rest for 10 minutes before cutting and serving. This resting time allows the egg custard to set up a bit more, making it easier to cut clean portions and ensuring the casserole holds together beautifully on the plate.