Philly Cheesesteak & Caramelized Onion Hash Brown Casserole

Philly Cheesesteak & Caramelized Onion Hash Brown Casserole

If Philly cheesesteak and loaded breakfast casserole had a delicious baby, this would be it! Crispy golden hash browns, tender shaved ribeye, sweet caramelized onions, and layers of gooey melted cheese come together in every bite. And just when you think it can’t get any better, a warm drizzle of Cheez Whiz takes it completely over the top!

Prep Time: 20 minutes
Cook Time: 45 minutes
Total Time: 1 hour 5 minutes
Yield: 6 servings

Ingredients

• 1 (30 oz) bag frozen shredded hash browns, thawed
• 1 lb shaved ribeye steak
• 1 green bell pepper, diced
• 1 red bell pepper, diced
• 2 large yellow onions, thinly sliced
• 2 tbsp butter
• 1 tbsp olive oil
• 2 cups shredded provolone cheese
• 1 cup shredded mozzarella cheese
• 1 cup Cheez Whiz
• 6 large eggs
• 3/4 cup milk
• 1 tsp garlic powder
• 1 tsp Worcestershire sauce
• 1/2 tsp smoked paprika
• 1 tsp salt
• 1/2 tsp black pepper
• Nonstick cooking spray

Instructions

1. Preheat oven to 400°F (200°C) and grease a 9×13-inch baking dish with nonstick spray.
2. In a large bowl, toss the thawed hash browns with olive oil, smoked paprika, salt, and black pepper. Press firmly into the prepared baking dish to form an even layer.
3. Bake for 20 minutes until the edges are golden brown and crispy.
4. While the hash browns bake, melt butter in a large skillet over medium-low heat. Add the sliced onions and cook for 18–20 minutes, stirring occasionally, until deeply caramelized and jammy.
5. Add the diced bell peppers and cook for another 3–4 minutes until softened.
6. Increase heat to medium-high and add the shaved ribeye steak. Sprinkle with garlic powder and Worcestershire sauce. Cook for 3–4 minutes, breaking up the meat as it browns.
7. Spread the cheesesteak mixture evenly over the crispy hash brown crust.
8. Sprinkle the provolone and mozzarella cheeses evenly across the top.
9. In a bowl, whisk together the eggs and milk until smooth. Pour evenly over the casserole.
10. Return to the oven and bake for 18–20 minutes, or until the eggs are set and the cheese is melted and bubbly.
11. Warm the Cheez Whiz until smooth and pourable, then drizzle generously over the hot casserole.
12. Let rest for 5 minutes before slicing and serving.

Pro Tip

For the ultimate cheese pull, buy a block of provolone and shred it yourself. Freshly shredded cheese melts smoother, creamier, and creates those irresistible stretchy bites everyone loves!