School mornings around here can get loud fast. Someone is looking for a water bottle, someone else is already asking what is for breakfast, and the cereal box is sitting on the counter like it knows I am tempted. I do not mind cereal now and then, but I do not want that to be our default just because we are short on time.
This hash brown breakfast casserole is the breakfast I make on those mornings. It starts with a box of Trader Joe’s frozen hash brown patties snapped in half right in the baking dish. Then I whisk eggs with heavy cream, cheddar, cooked bacon, ground mustard and dried chives, pour it over the top, and let the oven do the rest while I pour coffee and get our homeschool day started.
It only takes a few minutes to put together, and it comes out golden, cheesy and filling enough for our family of six. If you have ever wanted an easy breakfast casserole that feels special without keeping you at the stove, this Trader Joe’s hash brown breakfast bake is the one.
Why This Hash Brown Breakfast Casserole Works
- It is truly quick to assemble. Once the bacon is cooked, you can have this in the oven in about 10 minutes.
- The hash browns go in frozen. No thawing, no shredding, no extra pan. Just snap the Trader Joe’s patties in half and layer them in the dish.
- It feeds a crowd. One 9×13 pan covers our family of six, with a little left for seconds or tomorrow’s breakfast.
- Make ahead breakfast friendly. Assemble it the night before, then bake it in the morning while everyone wakes up.
- Kid-approved flavors. Crispy hash browns, bacon and cheddar taste like a diner breakfast, only it comes out of your own oven.
Ingredients
This bacon and cheese breakfast bake uses simple ingredients you can grab on a regular grocery run. I use Trader Joe’s frozen hash brown patties because they snap easily and bake up with those crispy edges we love.
- Cooking spray or butter, for the baking dish
- 1 (10-count) box Trader Joe’s frozen hash brown patties, snapped in half (do not thaw)
- 8 large eggs
- 1 cup heavy cream
- 1 teaspoon ground mustard
- 1 tablespoon dried chives
- 8 slices cooked bacon, chopped
- 2 cups shredded cheddar cheese
- 3/4 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper, plus more for the top
- Optional: flaky salt, for serving
If you love an easy family breakfast as much as we do, you may also like my Hearty Breakfast Tater Tot Casserole and these make-ahead breakfast pockets.
How to Make This Easy Breakfast Casserole
1. Preheat the oven
Heat the oven to 375°F. Lightly mist a 9×13-inch baking dish with cooking spray or rub it with a little butter so the casserole releases cleanly when you slice it.
2. Layer the hash brown patties
Keep the hash brown patties frozen. Snap each one in half and arrange the pieces in the dish so they cover the bottom. I like to nestle a few halves along the sides, too. That is how you get those golden, crispy hash brown edges in every slice of this Trader Joe’s hash brown breakfast bake.
3. Whisk the egg mixture
In a large bowl, whisk the eggs, heavy cream, ground mustard, dried chives, salt and pepper until everything looks smooth and a little frothy. The ground mustard gives the eggs a gentle, savory flavor without making the casserole taste like mustard.
4. Add the bacon and cheddar
Stir the chopped cooked bacon and shredded cheddar cheese right into the egg mixture. This way the bacon and cheese breakfast bake gets a little of both in every bite, not just on top.
5. Pour it over the hash browns
Pour the egg mixture evenly over the hash browns. Use a spoon to spread the bacon and cheese into the corners so the top is covered. Finish with a little extra freshly ground black pepper.
6. Bake
Bake for 40 to 45 minutes, until the center is set and the top is golden. If you give the dish a gentle shake, the middle should not jiggle like liquid. A knife inserted in the center should come out mostly clean.
7. Rest and serve
Let the casserole rest for 10 minutes before slicing. That short rest helps it set up so you get neat squares instead of a loose scoop. Add a pinch of flaky salt on top if you like, then serve it warm.
Tips for the Best Hash Brown Breakfast Casserole
Do not thaw the hash browns. Frozen patties hold their shape and crisp better as the eggs set around them.
Cook the bacon ahead of time. Leftover bacon from the weekend makes this even faster on a busy morning. If you are cooking it fresh, bake or pan-fry it first, then chop it.
Use a 9×13-inch dish. That size gives the hash browns enough room to make a full bottom layer without crowding.
Watch the color more than the clock. Ovens vary. If the top is browning too quickly before the center is set, tent the dish loosely with foil for the last few minutes.
Rest before you cut. I know it is hard to wait when the kitchen smells this good, but those 10 minutes make a big difference in how neatly it slices.
Make-Ahead and Storage
This is such a helpful make ahead breakfast when you know the morning is going to be full.
The night before: Assemble the casserole all the way through the pepper on top. Cover it tightly and refrigerate. In the morning, bake it at 375°F, adding 5 to 10 extra minutes since it will be cold from the fridge. I like to set the dish out on the counter while the oven preheats so it is not going straight from icy-cold to hot.
Leftovers: Let slices cool, then store them in an airtight container in the refrigerator for 3 to 4 days.
To reheat: Warm individual slices in the microwave until hot, or put them in a 350°F oven until heated through. A toaster oven or air fryer helps the hash brown edges crisp back up.
To freeze: Freeze baked slices for up to 2 months. Thaw overnight in the fridge, then reheat as above.
Easy Variations
- Sausage: Swap the bacon for 1/2 pound cooked breakfast sausage.
- Different cheese: Pepper jack, Colby-Jack or a cheddar blend all melt nicely.
- Fresh herbs: A handful of sliced green onions is lovely if you do not have dried chives.
- A few veggies: Stir chopped spinach or finely diced bell pepper into the egg mixture.
- No Trader Joe’s nearby: Any frozen hash brown patties will work. Use about 10 patties so you can cover the bottom of a 9×13 dish.
FAQ
Can I make this hash brown breakfast casserole the night before?
Yes. Assemble it fully, cover and refrigerate. Bake it in the morning at 375°F, adding 5 to 10 minutes so the center sets.
Do the hash brown patties go in frozen?
Yes. Use them straight from the freezer so they stay in pieces and get crisp around the edges as the casserole bakes.
What if I cannot find Trader Joe’s hash brown patties?
Any similar frozen hash brown patties will work for this easy breakfast casserole. You want enough to cover the bottom of a 9×13-inch dish, which is usually one 10-count box.
Can I use milk instead of heavy cream?
You can use whole milk in the same amount. The casserole will still be delicious, just a little less rich than the heavy cream version.
How many people does it feed?
One 9×13 pan feeds our family of six with leftovers, or about 8 servings if you are serving it with fruit or toast.
Recipe Card
Hash Brown Breakfast Casserole
An easy Trader Joe’s hash brown breakfast bake with bacon and cheddar.
Yield: one 9×13 pan (about 8 servings)
Prep: 10 minutes
Bake: 40 to 45 minutes at 375°F
Rest: 10 minutes
Total: about 60 to 65 minutes
Ingredients
- Cooking spray or butter, for the dish
- 1 (10-count) box Trader Joe’s frozen hash brown patties, snapped in half
- 8 large eggs
- 1 cup heavy cream
- 1 teaspoon ground mustard
- 1 tablespoon dried chives
- 8 slices cooked bacon, chopped
- 2 cups shredded cheddar cheese
- 3/4 teaspoon kosher salt
- 1/2 teaspoon freshly ground black pepper, plus more for the top
- Optional: flaky salt, for serving
Instructions
- Preheat the oven to 375°F. Grease a 9×13-inch baking dish.
- Snap the frozen hash brown patties in half and arrange them in the dish so they cover the bottom and sides.
- Whisk the eggs, heavy cream, ground mustard, dried chives, salt and pepper until smooth.
- Stir in the chopped cooked bacon and shredded cheddar.
- Pour the mixture over the hash browns and spread it evenly. Grind a little extra black pepper on top.
- Bake for 40 to 45 minutes, until the center is set and the top is golden.
- Rest for 10 minutes, slice, and serve. Add flaky salt if you like.
Notes: Assemble the night before for an easy morning bake, and add 5 to 10 extra minutes if it is going into the oven cold. Store leftovers in the fridge for 3 to 4 days, or freeze baked slices for up to 2 months.
I hope this hash brown breakfast casserole makes a busy morning feel a little more cared for. It is the kind of breakfast that gets everyone to the table, even when the day is already moving quickly.
