Sharing is caring!

This Mexican Tater Tot Breakfast Casserole is the ultimate crowd-pleaser! Packed with bold flavors, hearty ingredients, and a cheesy, savory kick, it’s the perfect make-ahead dish for holidays, brunch, or any morning when you’re feeding a hungry crew.

This post may contain affiliate links. When you click on these links, I get a small percentage back at no cost to you! For more information see my disclosure policy.

Below you will find tips, tricks and helpful hints for making this recipe including step by step instructions with pictures. If you would like to go directly to the recipe, scroll down to the recipe card or tap “Jump to Recipe” at the top of the page.

Why You’ll Love This Breakfast Bake

You’re going to love this Mexican Breakfast Casserole because it’s packed with bold, zesty flavors and all the best breakfast staples in one dish! Layers of eggs, cheese, sausage, and flavorful spices come together for a hearty, satisfying meal that’s perfect for feeding a crowd.

The best part? You can make it ahead of time, so it’s stress-free and ready to bake when you need it—perfect for busy mornings, holidays, or brunch gatherings. It’s easy, delicious, and sure to impress!

Tater Tot Casserole Ingredients

*Ingredient amounts are located in the recipe card at the end of this post.

• Frozen Tater Tot Potatoes: A hearty base for the casserole that adds texture and helps soak up all the flavors.
• Taco Seasoning: Adds bold, zesty Mexican-inspired spices to the dish for a flavorful kick.
• Breakfast Sausage or Chorizo: Provides a savory, meaty element—chorizo adds extra spice if you like heat.
• Chopped Onion: Adds a hint of sweetness and depth of flavor when sautéed with the sausage or chorizo.
• Eggs: The main binding ingredient that holds the casserole together and gives it a rich, creamy texture.
• Shredded Cheddar Cheese: Adds gooey, melty goodness and a sharp, cheesy flavor to every bite.
• Milk: Lightens the egg mixture, making the casserole fluffy and moist.
• Salt and Pepper: Enhances all the other flavors and ensures the dish is perfectly seasoned.
• Salsa: Brings a burst of fresh, tangy flavor and ties all the ingredients together with a hint of heat.

How to Make a Mexican Breakfast Casserole

[Step 1] In a medium skillet, cook the sausage or chorizo over medium-high heat until cooked through. Mix in 1/2 cup salsa and taco seasoning. Set aside.

[Step 2] In a mixing bowl, whisk together the eggs, milk, salt, pepper, 1 cup of salsa, and shredded cheese.

[Step 3] Spread the frozen tater tots along the bottom of a 9×13 baking dish that has been sprayed with nonstick spray. Sprinkle the sausage evenly over the tater tots. Pour the egg mixture over the tater tots and sausage in the baking dish.

[Step 4] Bake uncovered at 350 degrees for 50-55 minutes until the eggs have set in the center. Let the casserole rest for 10 minutes before serving.

[Step 5] Make Ahead Instructions: Follow the directions above, then cover and refrigerate the casserole until ready to bake. Remove from refrigerator and bake at 350 degrees for 55-60 minutes.

How to Store Leftovers

To store leftover Mexican Breakfast Casserole, let it cool completely, then cover it tightly with foil or transfer portions to an airtight container. Refrigerate for up to 3-4 days.

To reheat, place individual portions on a microwave-safe plate and heat for 1-2 minutes, or until warmed through. For larger portions, cover with foil and reheat in the oven at 350°F for 15-20 minutes. If frozen, thaw in the fridge overnight before reheating.

Recipe Variations

• Veggie-Packed: Add diced bell peppers, spinach, mushrooms, or zucchini for extra nutrients and flavor.
• Spicy Kick: Use spicy chorizo, add diced jalapeños, or mix in a dash of hot sauce for more heat.
• Meat Lovers: Add crumbled bacon, diced ham, or a mix of breakfast sausage and chorizo for extra protein.
• Cheese Swap: Substitute cheddar with pepper jack, Monterey Jack, or a Mexican cheese blend for a different flavor profile.
• Tortilla Layer: Replace the hash browns with layers of corn or flour tortillas for a Tex-Mex twist.
• Southwest Style: Add black beans, corn, and diced tomatoes to give the casserole a hearty, southwest-inspired flair.
• Dairy-Free: Use plant-based milk and dairy-free cheese for a lactose-free option.
• Make It Lighter: Swap sausage for turkey sausage or ground turkey, and use egg whites or an egg substitute for a lighter version.
• Topping Ideas: Garnish with avocado slices, sour cream, chopped cilantro, or an extra drizzle of salsa for a fresh finish.

Did you try this recipe? Make sure to give it a five star ⭐️⭐️⭐️⭐️⭐️ rating below!

Sharing is caring!