# What You'll Need:
→ Filling
01 - 10 oz ribeye steak, thinly sliced
02 - 1 tablespoon olive oil
03 - 1 small green bell pepper, thinly sliced
04 - 1 small red bell pepper, thinly sliced
05 - 1 medium yellow onion, thinly sliced
06 - 0.5 teaspoon kosher salt
07 - 0.25 teaspoon black pepper
→ Sandwich
08 - 8 slices sturdy white or sourdough bread
09 - 8 slices provolone cheese
10 - 4 tablespoons unsalted butter, softened
# Directions:
01 - Heat olive oil in a large skillet over medium-high heat. Add sliced steak, season with salt and pepper, and cook 2–3 minutes until browned. Remove steak and set aside.
02 - In the same skillet, add bell peppers and onion. Sauté 4–5 minutes until softened and lightly caramelized. Return steak to the skillet, toss to combine, then remove from heat.
03 - Butter one side of each bread slice. Place four slices buttered side down on a surface. Layer each with 1 slice provolone, a generous portion of steak and vegetable mixture, another slice provolone, then top with remaining bread slices buttered side up.
04 - Heat a large non-stick skillet or griddle over medium heat. Grill sandwiches for 3–4 minutes per side, pressing gently, until bread is golden and cheese melts.
05 - Transfer sandwiches to a cutting board, let rest for 1 minute, then cut in half and serve immediately.