Preheat the Traeger Grill

• Set your Traeger to 350°F and allow it to preheat for about 15 minutes with the lid closed.

2. Cook the Steak & Veggies

• Heat a large cast-iron skillet or griddle over medium heat.
• Add olive oil and butter, then sauté the onions and peppers until soft (about 5 minutes).
• Add garlic and cook for another minute.
• Move veggies to one side of the skillet, then add the sliced ribeye or ground beef to the other side.
• Season with salt, pepper, Worcestershire sauce, and smoked paprika.
• Cook until the beef is browned and cooked through (5-7 minutes).
• Drain excess grease if necessary, then mix the meat and veggies together.

3. Mix the Casserole Base

• In a large bowl, whisk together cream cheese, heavy cream, and eggs (if using).
• Stir in half of the shredded cheese.

4. Assemble the Casserole

• Transfer the steak and veggie mixture to a greased 9×13-inch baking dish.
• Pour the cream cheese mixture evenly over the top.
• Sprinkle with the remaining provolone and mozzarella cheese.

5. Smoke the Casserole

• Place the dish on the Traeger grill and cook at 350°F for 30-40 minutes, or until the cheese is melted, bubbly, and slightly golden.

6. Serve & Enjoy!

• Let it cool for 5 minutes, then slice and serve!
• Pair with toasted hoagie rolls if you want that classic Philly cheesesteak vibe!