Philly Cheesesteak Casserole Bake (Print Format)
Classic cheesesteak flavors with steak, peppers, and provolone in a comforting casserole bake for easy dinners.
# Ingredients:
→ Marinade
01 -
2 tablespoons red wine vinegar
02 -
2 tablespoons Worcestershire sauce
03 -
1 teaspoon baking soda
04 -
4 cloves garlic, minced, divided
05 -
½ teaspoon onion powder
06 -
½ teaspoon dried thyme
07 -
½ teaspoon salt
08 -
¼ teaspoon black pepper
09 -
2 cups water
→ Casserole
10 -
2 lbs flank steak, thinly sliced against the grain
11 -
2 tablespoons salted butter, divided
12 -
1 tablespoon oil
13 -
1 red bell pepper, sliced
14 -
1 green bell pepper, sliced
15 -
1 cup sliced white onion
16 -
4 oz cream cheese, cubed and softened
17 -
½ cup heavy cream
18 -
1 cup grated jack or pepper jack cheese
19 -
6 slices provolone cheese
# Steps:
01 -
In a large bowl, whisk together red wine vinegar, Worcestershire sauce, baking soda, 2 minced cloves of garlic, onion powder, dried thyme, salt, pepper, and water.
02 -
Slice steak against the grain as thin as possible (maximum ⅛ inch thick). Add sliced steak to the marinade and set aside for 15-30 minutes.
03 -
While the steak marinates, slice the vegetables and grate the cheese.
04 -
Preheat oven to 400°F.
05 -
Heat 1 tablespoon of butter and oil in a large skillet over medium heat. Drain marinade and discard. Cook steak in batches to prevent overcrowding until browned on all sides. Remove meat from skillet.
06 -
Add remaining butter to the skillet. Sauté bell peppers and onions until softened, about 5 minutes. Add remaining minced garlic and cook for another minute.
07 -
Add cream cheese and heavy cream to the skillet. Cook until melted. Bring to a low simmer and stir in grated cheese until smooth. Remove from heat.
08 -
Return the steak to the skillet, stirring to fully combine with the sauce.
09 -
Spread the steak and vegetable mixture into a casserole dish. Top with a layer of provolone cheese.
10 -
Bake for 15 minutes, or until the cheese has fully melted and is golden brown. Garnish with parsley and serve immediately.
# Tips:
01 -
Slicing the steak very thin against the grain ensures tenderness and quick cooking.
02 -
The baking soda in the marinade makes the steak extra tender by increasing its pH and preventing protein bonding.
03 -
You can add mushrooms to the sautéed vegetables if desired.
04 -
To prepare in advance, assemble the casserole in a baking dish, cover, and refrigerate for up to 2 days.