The Best Fluffy Pancakes recipe you will fall in love with. Full of tips and tricks to help you make the best pancakes.
Why Make This Recipe
Potatoes O’Brien Breakfast Casserole is a delicious and hearty dish that’s perfect for breakfast or brunch. This recipe combines hash browns, bell peppers, eggs, and cheese to create a filling meal that everyone will love. It’s also easy to make, which makes it ideal for busy mornings or gatherings with family and friends.
How to Make Potatoes O’Brien Breakfast Casserole
Ingredients
- 2 cups frozen diced hash brown potatoes
- 1 cup bell peppers (red, green, yellow), diced
- 6 large eggs
- 1 cup milk
- 1 cup shredded cheese (cheddar or your choice)
- Salt and pepper to taste
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- Cooking spray or butter for greasing the dish
Directions
- Preheat your oven to 350°F (175°C).
- Grease a 9×13 inch baking dish with cooking spray or butter.
- Spread the frozen hash browns evenly across the bottom of the dish.
- In a skillet, sauté the diced bell peppers until they are tender, about 5 minutes.
- In a mixing bowl, whisk together the eggs, milk, garlic powder, onion powder, salt, and pepper.
- Pour the egg mixture over the hash browns.
- Evenly distribute the sautéed peppers and shredded cheese on top.
- Bake in the preheated oven for 40-45 minutes, or until the eggs are set and the top is golden.
- Allow to cool slightly, then slice and serve. Enjoy your casserole!
How to Serve Potatoes O’Brien Breakfast Casserole
Serve this casserole warm, straight from the oven. You can cut it into squares and plate it individually for a nice presentation. It pairs well with fresh fruit, toast, or a side of bacon for a complete meal.
How to Store Potatoes O’Brien Breakfast Casserole
If you have leftovers, let the casserole cool completely. Then, store it in an airtight container in the fridge for up to 4 days. You can also freeze it before baking. Just wrap it tightly in plastic wrap and aluminum foil. When you’re ready to eat it, thaw it in the fridge overnight, then bake as directed.
Tips to Make Potatoes O’Brien Breakfast Casserole
- Make sure to use frozen hash browns for easier preparation. They do not need to be thawed.
- Experiment with different cheeses to find your favorite flavor.
- You can add cooked sausage or bacon for added protein.
- Don’t skip the sautéing of the bell peppers. This enhances their flavor and texture.
Variation
For a spicier kick, you can add diced jalapeños or use pepper jack cheese instead of cheddar. You could also substitute the bell peppers with your favorite vegetables, like spinach or zucchini.
FAQs
Can I make this casserole ahead of time?
Yes, you can prepare it the night before and bake it in the morning. Just cover it tightly and store it in the fridge.
Can I use fresh potatoes instead of frozen?
Yes, you can shred fresh potatoes, but they will need to be cooked first before adding them to the casserole.
How do I know when the casserole is done?
The casserole is done when the eggs are set and the top is golden brown. You can test it by inserting a knife in the center; it should come out clean.

Potatoes O'Brien Breakfast Casserole
Ingredients
Method
- Preheat your oven to 350°F (175°C).
- Grease a 9x13 inch baking dish with cooking spray or butter.
- Spread the frozen hash browns evenly across the bottom of the dish.
- In a skillet, sauté the diced bell peppers until they are tender, about 5 minutes.
- In a mixing bowl, whisk together the eggs, milk, garlic powder, onion powder, salt, and pepper.
- Pour the egg mixture over the hash browns.
- Evenly distribute the sautéed peppers and shredded cheese on top.
- Bake in the preheated oven for 40-45 minutes, or until the eggs are set and the top is golden.
- Allow to cool slightly, then slice and serve.
- Enjoy your casserole!



