If there’s one dish that can bring the whole family to the table—whether it’s a lazy Sunday morning or a holiday brunch—it’s a good breakfast casserole. And this Roasted Potato Breakfast Casserole? Oh, it’s the one. With crispy potatoes, melty cheese, smoky bacon, and fluffy eggs all baked into one golden, bubbling dish, this cheesy egg bake is the definition of comfort food.

Perfect for feeding a crowd or meal prepping for the week, this casserole checks all the boxes: hearty, flavorful, and guaranteed to get rave reviews.

Why You’ll Love This Roasted Potato Breakfast Casserole

Not all brunch recipes are created equal, and this one is in a league of its own. Here’s why:

It’s a satisfying one-dish wonder (hello, fewer dishes to wash!)
You get that classic potato and bacon casserole flavor with zero fuss
Make-ahead friendly and freezer-happy
Customizable with whatever cheese or veggies you’ve got in the fridge

Ingredients You’ll Need

For the Potatoes:

1.5 pounds (680g) russet potatoes, washed, cubed, rinsed, and patted dry
1–2 tablespoons (15–30ml) vegetable oil
1 teaspoon (5g) seasoned salt
1/2 teaspoon (2g) black pepper

For the Casserole:

8 large eggs, room temperature
1 cup (240ml) heavy cream
1/2 teaspoon (3g) kosher salt
1/2 teaspoon (2g) ground black pepper
1/2 teaspoon (1g) dry mustard powder
1/4 teaspoon (0.5g) onion powder
8 slices of bacon, cooked and crumbled
1 small yellow onion, finely diced (about 1/2 cup / 75g)
1 1/2 cups (170g) Monterey Jack cheese, shredded (divided)
1 1/2 cups (170g) cheddar cheese, shredded (divided)
1–2 green onions, diced (for garnish)

How to Make This Cheesy Egg Bake

Preheat & Prep: Set your oven to 350°F (175°C). Grease a 9×13 inch baking dish and set it aside.
Fry the Potatoes: Heat oil in a skillet over medium heat. Add the cubed, dried potatoes, and season with seasoned salt and black pepper. Cover and cook for 10 minutes. Then uncover and cook another 8–10 minutes, stirring occasionally, until crispy.
Layer the Base: Transfer the golden potatoes to the greased baking dish and spread them out evenly.
Whisk It Up: In a large bowl, whisk together the eggs, heavy cream, salt, pepper, mustard powder, and onion powder. Stir in the crumbled bacon, diced onion, 1 cup each of Monterey Jack and cheddar cheese.
Pour & Bake: Pour the egg mixture evenly over the potatoes. Bake for 25 minutes.
Add Cheese & Finish: Sprinkle the remaining cheese on top. Bake for another 10 minutes, or until the top is golden and the center is just set.
Garnish & Serve: Let it cool slightly, then garnish with green onions and serve warm.

Tips to Make the Best Potato and Bacon Casserole

Dry those potatoes well after rinsing—moisture is the enemy of crispiness.
Use room-temperature eggs for better mixing and more even baking.
Don’t skimp on the seasoning—dry mustard and onion powder add that magic breakfast flavour.
Add veggies like spinach, bell peppers, or mushrooms if you’re feeling veggie-happy.
Love spice? A dash of hot sauce or some chopped jalapeños goes a long way.

Why This Became My Favourite Brunch Recipe

I first whipped up this Roasted Potato Breakfast Casserole for a Mother’s Day brunch, and let me tell you—it was a hit before the first mimosa was poured. It’s now in my permanent “crowd-pleaser” rotation. It’s warm, cheesy, and just the kind of dish that makes you want to linger at the table a little longer.

What to Serve with Your Roasted Potato Breakfast Casserole

A fresh fruit salad or citrusy green salad to lighten things up
Flaky croissants or crusty toast to soak up every bite
Mimosas, coffee, or chai tea for the ultimate brunch vibes
Yogurt parfaits for a sweet, creamy side

How to Store & Reheat

This casserole is just as delicious the next day (if you’re lucky enough to have leftovers!):

Store: Cool completely, then cover and refrigerate for up to 4 days.
Freeze: Wrap tightly in foil or portion into freezer containers. Freeze for up to 2 months.
Reheat: Warm individual portions in the microwave, or reheat the whole pan in a 325°F oven until heated through.

FAQs About Breakfast Casseroles

Can I prep this the night before?

Yes! Assemble everything (except the final cheese layer) and refrigerate overnight. Add the rest of the cheese in the morning before baking.

Can I use frozen potatoes?

Absolutely—just make sure they’re thawed and patted dry before pan-frying.

Is this gluten-free?

Yes, all ingredients here are naturally gluten-free.

Can I make this vegetarian?

Skip the bacon and load it up with extra veggies like mushrooms and spinach.

This One’s a Keeper

From its crispy roasted potatoes to its gooey, cheesy centre, this Roasted Potato Breakfast Casserole is pure brunch bliss. Whether you’re feeding a holiday crowd or just want something cosy and delicious for the weekend, this breakfast casserole fits the bill. So tie on that apron, preheat the oven, and let’s get baking—your kitchen is about to smell amazing.

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