Philly Cheesesteak Scalloped Potato Bake

If you love a good Philly cheesesteak and a creamy, cheesy comfort bake - this is the ultimate weeknight dinner mash-up you never knew you needed. My Philly Cheesesteak Scalloped Potato Bake is loaded with tender steak, sautéed peppers and onions, provolone and mozzarella, and layered with creamy scalloped potatoes. It's cozy, indulgent, and shockingly easy to make using a box of Idahoan® Scalloped Potatoes.

Here's What You'll Need

• 1 box Idahoan® Scalloped Potatoes (Original or Crispy flavor)

• 1 ½ cups boiling water

• 1 tablespoon butter

• 1 tablespoon olive oil

• ¾ to 1 lb thinly sliced steak (sirloin, flank, or ribeye)

• 1 teaspoon garlic powder

• Salt & black pepper, to taste

• 1 cup sliced bell peppers (red, green, or yellow)

• ½ cup sliced onion

• 4-6 slices provolone cheese

• ½ cup shredded mozzarella

• Fresh parsley (for garnish, optional)

Instructions

1. Preheat your oven to 400°F. Lightly grease an 8x8 or 9x9 baking dish.

2. Prepare the scalloped potatoes:
In a mixing bowl, combine the dry Idahoan potatoes, sauce packet, 1½ cups boiling water, and 1 tablespoon butter. Stir until smooth and set aside.

3. Cook the steak mixture:
Heat olive oil in a skillet over medium-high. Season sliced steak with garlic powder, salt, and pepper. Sear until just cooked through (about 2-3 minutes per side). Remove and set aside.

4. Sauté veggies:
In the same pan, cook bell peppers and onions until softened (about 4-5 minutes). Add steak back to the pan and toss to combine.

5. Layer it up:
In your greased baking dish, layer:

• Half of the scalloped potato mixture

• All of the steak + pepper mixture

• Slices of provolone cheese

• Remaining scalloped potatoes

• Sprinkle shredded mozzarella on top

6. Bake:
Bake uncovered for 25-28 minutes, or until the top is golden brown and bubbling. Broil for the last 1-2 minutes if you want extra crisp.

7. Rest & garnish:
Let it cool for 5-10 minutes before serving. Garnish with fresh parsley for a pop of color.

Tips & Variations

• Meat swap: Use thinly sliced deli roast beef for a shortcut version.

• Add mushrooms: Toss in some sautéed mushrooms for an earthy twist.

• Spice it up: Add a pinch of crushed red pepper for heat.

• Meal prep friendly: This reheats beautifully and makes great leftovers.

Why You'll Love This Recipe

✔️ Easy shortcut with boxed scalloped potatoes
✔️ Feels indulgent but uses pantry ingredients
✔️ Crowd-pleasing and kid-approved
✔️ Freezer-friendly for make-ahead meals
✔️ Layers of flavor in every bite

Tag @homecookvibe when you make it - I love seeing your kitchen creations!
Craving more comfort food recipes? Browse my One Pan Dinner Ideas for more inspo.