Irresistible Mexican Breakfast Casserole Recipe for Bold Mornings

If you’re looking to add excitement to your morning routine, this Mexican Breakfast Casserole is the answer. Packed with robust flavor, satisfying textures, and a cheesy finish, it’s everything you want in a savory breakfast — with a Tex-Mex twist. Whether you need a weekend brunch stunner, a make-ahead breakfast, or a low-carb Mexican breakfast casserole, this recipe delivers.

From the creamy eggs to spicy chorizo, crunchy peppers, and golden hash browns, this easy casserole covers all the breakfast bases. It’s great for families, guests, or meal prep lovers looking for something filling and delicious.

Let’s dive into what makes this breakfast bake truly unforgettable.

Save

Why You’ll Love This Mexican Breakfast Casserole

This dish combines the bold flavors of Mexican cuisine with the convenience of a one-pan overnight breakfast. Whether you’re preparing for a brunch crowd or stocking your freezer with easy meals, here’s why it deserves a spot in your rotation:

• Versatile: Swap ingredients to make it vegetarian or gluten-free.
• Make-ahead friendly: Assemble it the night before and bake it fresh in the morning.
• Customizable: Add heat or keep it mild — totally up to you!
• Family-approved: Cheesy, meaty, and hearty — even picky eaters love it.

Ingredients You’ll Need

Here are the full ingredients to recreate this spicy, satisfying breakfast casserole:

• 1 lb chorizo sausage (or your favorite Tex-Mex sausage)
• 1 tablespoon olive oil
• 1 small yellow onion, diced
• 1 red bell pepper, chopped
• 1 green bell pepper, chopped
• 2 cups frozen hash browns, thawed
• 10 large eggs
• 1/2 cup milk
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 1/2 teaspoon cumin
• 1/2 teaspoon smoked paprika
• 2 cups shredded cheddar cheese
• 1/2 cup Monterey Jack cheese, shredded
• 1/4 cup chopped cilantro (optional for garnish)

Want a lighter version? Try this recipe with egg whites and reduced-fat cheese for a low carb Mexican breakfast casserole.

Kitchen Equipment Needed

To make this casserole smoothly from start to finish, have these essentials on hand:

• 9×13 inch casserole dish
• Large skillet
• Mixing bowls
• Whisk
• Spatula or wooden spoon
• Measuring cups and spoons
• Aluminum foil (if making ahead)

How to Make Mexican Breakfast Casserole

Follow these step-by-step instructions to bring this flavorful casserole to life:

• Preheat and Prepare: Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish with cooking spray or olive oil.
• Cook Chorizo: In a large skillet over medium heat, cook the chorizo until fully browned. Remove and set aside, draining excess grease if needed.

Save

• Sauté Veggies: In the same skillet, add olive oil, then sauté onion and both bell peppers until soft (about 5 minutes). Stir in hash browns and cook for 3–4 more minutes.
• Whisk Eggs: In a large mixing bowl, whisk together eggs, milk, salt, pepper, cumin, and paprika.
• Assemble Casserole: In your prepared baking dish, layer the hash brown mixture, cooked chorizo, and cheese. Pour the egg mixture evenly over the top.
• Bake: Bake for 35–40 minutes or until the eggs are set and the top is golden brown. A knife inserted into the center should come out clean.
• Garnish and Serve: Let cool for 10 minutes, then sprinkle with cilantro and serve warm.

If you’re preparing it as an overnight breakfast casserole with hash browns, simply cover it with foil and refrigerate overnight. Bake in the morning as directed.

Save

Mexican Breakfast Casserole Variations

Looking to switch it up? Here are some ways to adapt this recipe to your preferences:

• Vegetarian: Omit the chorizo and add black beans, corn, or mushrooms.
• Gluten-Free: This recipe is naturally gluten-free — just double-check your sausage and spices.
• Spicier: Add diced jalapeños or a sprinkle of chili flakes for heat.
• Tex Mex Sausage Breakfast Casserole: Use seasoned breakfast sausage and top with salsa for a Southern-Mexican fusion.

Want more savory breakfast ideas? Check out our Tater Tot Breakfast Bowl or these freezer-friendly Crack Breakfast Casserole options.

Tips for the Best Mexican Breakfast Casserole

Here are expert tips to make your casserole stand out:

• Don’t skip the sauté: Cooking the veggies before baking helps them release moisture and enhances their flavor.
• Use quality chorizo: Fresh or cured, a good sausage will flavor the entire dish.
• Let it rest: Always rest your casserole 10 minutes before cutting to allow the eggs to set.

Common Mistakes to Avoid

Avoid these simple missteps:

• Overbaking: Leads to a dry, rubbery texture. Remove as soon as the center is set.
• Skipping seasoning: Don’t forget to season your egg mixture; bland eggs will dull the whole dish.
• Using frozen hash browns straight from the freezer: Thaw them first to prevent a watery bottom.

Serving Suggestions

This casserole is hearty on its own but pairs beautifully with:

• Fresh fruit salad
• Pumpkin Baked Oatmeal for a cozy side
• Croissant Breakfast Boats if you’re hosting brunch

Looking for something drinkable on the side? Try our refreshing Lavender Lemonade.

Storing and Freezing Leftovers

This casserole stores and reheats like a dream:

• Refrigerator: Store leftovers in an airtight container for up to 4 days.
• Freezer: Wrap slices individually and freeze for up to 2 months.
• Reheat: Warm in the oven at 350°F or microwave individual servings.

Perfect for freeze breakfast casserole meal preps or batch cooking!

Save

FAQ: Mexican Breakfast Casserole

Can I make this casserole without meat?
Yes! Simply omit the chorizo and add sautéed veggies, black beans, or tofu for protein.

Can I use fresh potatoes instead of hash browns?
Yes, just grate and squeeze out the moisture before cooking.

What’s the best cheese for this recipe?
Cheddar and Monterey Jack are perfect, but you can use pepper jack for added spice.

Is this a good option for meal prep?
Absolutely! It holds up wonderfully in the fridge or freezer.

How do I make this more low carb?
Use cauliflower hash browns or skip them altogether and add extra eggs and vegetables.

More Mexican Breakfast Recipes You’ll Love

Craving more bold, spicy mornings? Try these next:

• Pumpkin Cottage Cheese Pancakes
• Strawberry Protein Pancakes
• Freezer Breakfast Sandwiches
• Pumpkin Cheesecake Cookies
• High Protein Overnight Oats

Final Thoughts on This Mexican-Inspired Casserole

This Mexican Breakfast Casserole brings everything you love about brunch together in one bold, cheesy, flavor-packed dish. Whether you’re spicing up a weekend or prepping weekday breakfasts, this recipe is guaranteed to satisfy. Plus, it’s easily adaptable for dietary needs and meal prep.

It’s no surprise this recipe earns a spot next to other amazing breakfast casseroles like our Crack Breakfast Casserole or Croissant Breakfast Boats.

Print