Mexican Hash Brown Breakfast Casserole
Imagine waking up to a warm, hearty breakfast that is not only satisfying but also bursting with flavor. The Mexican Hash Brown Breakfast Casserole is your ultimate morning solution, combining crispy hash browns, savory sausage, and a delightful blend of cheeses, all baked together to perfection. This dish is perfect for feeding a crowd or for enjoying leftovers throughout the week. With minimal prep time and maximum flavor, this casserole is destined to become a family favorite.
Why It Works Every Time

This Mexican Hash Brown Breakfast Casserole works wonders due to its harmonious blend of textures and flavors. The crispy hash browns serve as a delicious foundation, while the savory sausage adds depth and richness. The combination of cheddar and Monterey Jack cheeses provides a melty, gooey texture that is simply irresistible. The addition of salsa not only brings a zesty kick but also keeps the casserole moist and flavorful. Plus, it can be assembled in advance, making it a hassle-free option for busy mornings or special brunch gatherings.
Ingredient Breakdown
- 8 frozen hash brown patties – These provide the crispy base for the casserole and save time on prep.
- 1 lb sausage – Choose your favorite type, whether it’s spicy or mild, for an added kick.
- 1 cup salsa – Adds flavor and moisture; feel free to use your preferred variety.
- 1 cup shredded cheddar cheese – The sharp flavor complements the other ingredients beautifully.
- 1 cup shredded Monterey Jack cheese – Offers a creamy texture and mild flavor.
- 12 large eggs – Acts as the binding agent, holding everything together.
- 1/2 cup milk – Makes the eggs fluffy and light.
- 1 (1-oz) package taco seasoning – Enhances the overall flavor profile with its blend of spices.
Cook’s Kit
- Large mixing bowl – For combining ingredients.
- 9×13-inch baking dish – Perfect size for the casserole.
- Skillet – To cook the sausage before adding it to the casserole.
- Whisk – For beating the eggs and milk together.
How to Prepare Mexican Hash Brown Breakfast Casserole

Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). This ensures that your casserole bakes evenly.
Step 2: Cook the Sausage
In a skillet over medium heat, cook the sausage until browned and cooked through. Break it into small pieces as it cooks. Once done, remove from heat and drain any excess grease.
Step 3: Prepare the Casserole Base
Arrange the frozen hash brown patties in a single layer at the bottom of your greased 9×13-inch baking dish. It’s important to cover the bottom well for a crispy texture.
Step 4: Mix the Egg Mixture
In a large mixing bowl, whisk together the eggs, milk, taco seasoning, and salsa until well combined. Stir in the cooked sausage, cheddar cheese, and Monterey Jack cheese.
Step 5: Combine and Pour
Pour the egg and sausage mixture over the hash browns in the baking dish, spreading evenly.
Step 6: Bake
Bake in the preheated oven for 45-50 minutes, or until the eggs are set and the top is golden brown. You can check for doneness by inserting a knife into the center; it should come out clean.
Step 7: Cool and Serve
Let the casserole cool for a few minutes before slicing. Serve warm, garnished with additional salsa or your favorite toppings such as avocado or cilantro.
How to Make It Lighter

- Use turkey or chicken sausage instead of pork sausage for a leaner option.
- Substitute half-and-half or whole milk with skim milk for fewer calories.
- Replace some of the cheese with diced vegetables like bell peppers or spinach to boost nutrition without adding too many calories.
Recipe Notes & Chef’s Commentary
This Mexican Hash Brown Breakfast Casserole is incredibly versatile. Feel free to customize it with your favorite ingredients. You can add black beans for extra protein, or swap out the cheeses for your preferred types. Not a fan of salsa? Try using diced tomatoes or even a homemade Ultimate Macho Nachos Recipe topping for a twist.
- For a spicier version, consider using spicy sausage or adding jalapeños.
- This recipe can easily be doubled for larger gatherings – just use a larger baking dish.
Storage Pro Tips
Leftovers can be stored in an airtight container in the refrigerator for up to 4 days. For longer storage, consider freezing the casserole. To freeze, allow it to cool completely, cover tightly with foil or plastic wrap, and store in the freezer for up to 2 months. To reheat, thaw overnight in the fridge and bake at 350°F (175°C) until heated through.
Mexican Hash Brown Breakfast Casserole Q&A
Can I make this casserole ahead of time?
Absolutely! You can assemble the casserole the night before and refrigerate it overnight. Just add an extra 10-15 minutes to the baking time if baking straight from the fridge.
Can I use fresh hash browns instead of frozen?
Yes, you can use fresh hash browns. Just make sure to pre-cook them slightly to ensure they crisp up nicely during baking.
What can I serve with the casserole?
This casserole pairs wonderfully with fresh fruit, a side of avocado slices, or a light salad for a complete breakfast experience.
Can I use different types of cheese?
Definitely! Feel free to experiment with different cheeses such as pepper jack for a spicy kick, or gouda for a rich flavor.
Ready, Set, Cook
Now that you have the recipe for this mouthwatering Mexican Hash Brown Breakfast Casserole, it’s time to gather your ingredients and get cooking! This casserole is not only simple to make but also guarantees a crowd-pleasing breakfast that’s packed with flavor. Enjoy the ease of preparation, the delightful aroma filling your kitchen, and the satisfaction of serving a delicious meal that everyone will love. Happy cooking!

Mexican Hash Brown Breakfast Casserole
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C).
- In a skillet over medium heat, cook the sausage until browned and cooked through. Remove from heat and drain excess grease.
- Arrange the frozen hash brown patties in a single layer at the bottom of your greased 9x13-inch baking dish.
- In a large mixing bowl, whisk together the eggs, milk, taco seasoning, and salsa until well combined. Stir in the cooked sausage, cheddar cheese, and Monterey Jack cheese.
- Pour the egg and sausage mixture over the hash browns in the baking dish, spreading evenly.
- Bake in the preheated oven for 45-50 minutes, or until the eggs are set and the top is golden brown.
- Let the casserole cool for a few minutes before slicing. Serve warm with additional salsa or toppings.
Notes
- For a leaner option, use turkey or chicken sausage instead of pork.
- This recipe can be doubled for larger gatherings by using a bigger baking dish.
- Leftovers can be stored in an airtight container in the refrigerator for up to 4 days.
