Overnight Tater Tot Breakfast Casserole (Make-Ahead)
This Overnight Tater Tot Breakfast Casserole is a delicious make-ahead dish filled with veggies, cheese, and tater tots. An easily customizable breakfast perfect for holidays or weekday mornings.
Easy Cheesy Breakfast
I’ve always got one eye on my weekend brunch plans (and the other on cleanup), so this overnight tater tot breakfast casserole has become a personal favorite. It’s such a win when I can prep the night before, sleep in a little, and still serve something hearty and comforting. If you enjoy make‑ahead breakfasts, you might also like my Sheet Pan Pancakes from Pancake Mix or check out the full Breakfast recipe archive for more options.
Why You Will Love This Recipe
You can assemble it ahead and simply bake in the morning so there’s less stress when your stomach is already growling.
It’s all-in-one: eggs, tots, cheese, meat, and veggies—no side dish required.
It’s versatile and forgiving– swap proteins, cheeses, or vegetables to suit your taste or what’s in your fridge.
Ingredients
- Eggs– The base that holds everything together.
- Frozen tater tots– No need to thaw. Crispy crowns or mini tots also work.
- Milk– Whole milk adds richness, but 2% or even half‑and‑half work well.
- Shredded cheese– Try sharp cheddar, Colby‑Jack, or a melty Mexican blend.
- Breakfast meat– Sausage, bacon, or chopped ham are all delicious.
- Vegetables– Use favorites like bell peppers, onions, spinach, or broccoli. I used peppers and onions in the photo.
- Seasoning salt– Sub with kosher salt + a touch of garlic or your go-to all-purpose seasoning.
*See the recipe card at the bottom of the page for detailed instructions and a list of ingredients.
How To Make Tater Tot Breakfast Casserole
- Cook the meat and veggies– Brown and drain your meat; sauté veggies until just tender.
- Assemble– Layer tater tots in a greased 9×13″ pan. Top with meat, veggies, whisked eggs + milk + seasoning, and shredded cheese.
- Chill (or not)– Cover and refrigerate overnight to let the flavors soak in. Or bake right away if short on time.
- Bake & Serve– Let it sit at room temp while the oven preheats. Bake covered at 350°F for 30 minutes, then uncovered for 15 more until bubbly. Add toppings and enjoy!
Variation Ideas
This recipe is very easy to switch up to suit your taste. A few ideas to try:
- Vegetarian– Skip the meat and bulk it up with more veggies like mushrooms, zucchini, or spinach.
- Spicy– Add jalapeños or use pepper jack cheese for a kick.
- Hash Brown Version– Replace tater tots with 1 lb frozen shredded hash browns.
Storage Options
Refrigerate leftovers in an airtight container for 3–4 days.
Reheat individual slices in the microwave or oven at 325°F until warm.
Freeze baked and cooled casserole up to 2 months. Thaw in fridge overnight and reheat in oven.
Frequently Asked Questions
This make-ahead hash brown casserole can be made the same day as prepared. The potatoes will not break down as well but it will still bake well and taste delicious.
This casserole is very filling on its own with potatoes, meat, and vegetables. Since this is very savory, any fruit like mixed berries or oranges would taste delicious on the side.
Helpful Tips
* Want extra crispiness? Broil for 1–2 minutes at the end- just keep a close eye on it!
* Refrigerate up to 24 hours before baking so the liquid will soften the tater tots.
* Rotate the pan halfway through baking for even browning.
More Delicious Breakfast Recipes
- Crock Pot Apple Cinnamon Oatmeal
- Easy Coconut Almond Granola
- Triple Berry Baked Oatmeal
- Butter Swim Biscuits
- Slow Cooker Apple Butter
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Overnight Tater Tot Breakfast Casserole
Ingredients
- 8 large eggs
- 6 cups frozen tater tots (24 ounces)
- 1 cup milk
- 3 cups shredded cheddar cheese
- 2 cups cooked breakfast meat such as sausage, chicken, or bacon
- 2 cups cooked vegetables such as peppers, mushrooms, or onions
- 2 teaspoons seasoning salt
Instructions
- Spray a 9×13 inch baking pan with cooking spray. Line the bottom of the pan with tater tots. Add meat and vegetables evenly over the top of the potatoes.
- In a medium bowl, whisk together eggs, milk, and seasoning salt. Pour over the top of the casserole. Sprinkle the cheese evenly over the entire top.
- Cover with aluminum foil and refrigerate overnight or up to 24 hours.
- When ready to bake, remove from the refrigerator and allow the casserole to warm up to room temperature while preheating the oven to 350 degrees Fahrenheit. Bake covered for 30 minutes. Then remove the cover and bake an additional 15 minutes until the center has set and the cheese has completely melted. Remove and allow to cool a few minutes before serving. Enjoy!
Notes
- Refrigerate leftovers up to 3–4 days.
- Freeze baked portions (cooled) for up to 2 months. Thaw overnight, then reheat.
