Tater Tot Breakfast Casserole (Make-Ahead!)

This Tater Tot Breakfast Casserole has super creamy eggs, bacon (or sausage), and 2 kinds of cheese! It’s easy to make ahead of time and is perfectly freezer-friendly!

Love Casseroles for Breakfast? Try my Overnight Everything Bagel Breakfast Casserole or my Denver Omelette Egg Bake recipe next!A slice of tater tot breakfast casserole on a white plate with a fork and orange juice in the background.

Tater Tot Casserole Ingredients

  • Bacon– You could also cook and crumble 1/2 lb. breakfast sausage, casings removed
  • Onions
  • Bell Peppers– Green blends really well in this casserole
  • Eggs
  • Sour Cream– The secret to extra creamy eggs
  • Milk– or half and half for extra indulgence
  • Feta Cheese– This blends really well into this casserole
  • Cheddar Cheese– I love using Hot Habanero Cheddar Cheese for a kick!
  • Tater Tots– Frozen
  • Green Onions– To garnish

Optional Additional Ingredients Include:

  • Mushrooms
  • Spinach
  • Cherry Tomatoes
  • Sun-Dried Tomatoes
  • Caramelized Onions
  • Gruyere, Mozzarella, or Gouda Cheese

☝️ See how the top of the whisked eggs have a foamy/frothy top? Those are air pockets from vigorous whisking and will give you extra fluffy eggs, especially if baked right away.

Make-Ahead Method

  • Assemble casserole as instructed, but wait on adding the frozen tater tots until just before baking.
  • Cover and refrigerate for up to 2 days.
  • Let it sit out for 10 minutes prior to baking.

A white casserole dish with tater tot breakfast casserole topped with bacon.

Freezing Unbaked Breakfast Casserole

Yes, this is possible!

  • Assemble the casserole (except for the tater tots). Cover tightly with foil, and freeze for up to 2 months.
  • Let it defrost in the fridge overnight.
  • Let it sit out for 10 minutes. Top with Tater Tots and bake!

Tater tot breakfast casserole in a white casserole dish with a slice taken out of it.

Storing Leftovers

  • Leftovers should be stored in an airtight container in the fridge and are best if eaten within 3 days. 
  • Reheat leftovers in a 350° oven until heated through, about 20-25 minutes.
  • You can also freeze leftovers for 3-4 months. I like wrap portion sizes in foil and store them in a labeled freezer bag.
  • Let frozen leftovers thaw in the fridge overnight prior to reheating in the oven.

A Fun Way to Use up Leftovers

  • Reheat, scramble it up a bit, and load up a flour tortilla for breakfast burritos!

A piece of tater tot breakfast casserole with a bite taken out of it on a white plate with a fork.

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Tater Tot Breakfast Casserole

5 from 3 votes
This Tater Tot Breakfast Casserole has super creamy eggs, bacon and 2 kinds of cheese! It's easy to make ahead of time and is perfectly freezer-friendly!


  • 5 strips bacon
  • 1/2 cup white onion, diced
  • ½ cup green bell pepper, diced
  • Salt/Pepper, to taste
  • 9 large eggs
  • ¼ cup sour cream, at room temp
  • ½ cup milk
  • ½ teaspoon cayenne pepper
  • 1/3 cup feta
  • 1 cup Cheddar cheese, shredded
  • 3 cups frozen tater tots

To Garnish

  • 3 green onions, diced


  • Preheat the oven to 375 degrees F.
  • Cook the bacon in a large skillet over low heat until crispy on each side.
  • Set the bacon aside. Once cool enough to handle, roughly chop it.
  • Reserve 1 Tablespoon of the bacon grease in the pan and drain the rest.
  • Heat the onions and peppers in the bacon drippings for 3 minutes over medium heat. Season lightly with salt and pepper.
  • Crack the eggs in a large bowl. Whisk vigorously with a fork or whisk to create a foamy consistency. These are air pockets that make the eggs fluffy.
  • Beat in the sour cream and milk until well-incorporated. Season with salt, pepper, and cayenne pepper.
  • Pour the egg mixture into a lightly greased 9 x 13 casserole dish.
  • Sprinkle the feta over the eggs, then the bacon, onions, and peppers. Note: You may want to reserve a little bit of bacon to garnish the top of the casserole with.
  • Top with grated cheddar, then with the tater tots.
  • Bake uncovered for 40 minutes, until the tater tots are crisp.
  • Let it sit for 5 minutes.
  • Top with diced green onions, serve, and enjoy!


I love using Cabot Hot Habanero Cheddar Cheese on top of this casserole and recommend it if you like a little kick!

The Tater Tots will sink into the egg mixture slightly, (this is fine!)- I like to position some tater tots on top of others so that they peek through the top without sinking down!


Calories: 423kcal, Carbohydrates: 21g, Protein: 19g, Fat: 30g, Saturated Fat: 12g, Cholesterol: 292mg, Sodium: 717mg, Potassium: 414mg, Fiber: 2g, Sugar: 3g, Vitamin A: 848IU, Vitamin C: 17mg, Calcium: 263mg, Iron: 2mg