Philly Cheesesteak Casserole with Pasta and Ground Beef

Preheat the oven to 350º
Cook pasta per package directions in salted water, drain and return to the pot.
In a large skillet, add ground beef and 1 teaspoon of Montreal seasoning and cook over medium-high heat until cooked through. Drain the grease and remove from the pan.
In the same skillet, add a drizzle of olive oil and add the diced onions, peppers and mushrooms. Cook over medium-high heat until softened, about 5 minutes. Add minced garlic and cook an additional minute. Remove from the heat.
In a saucepan, combine half-and-half and American cheese and cook over medium heat until cheese has melted. Add the cream cheese and cook until it has melted. Add 2 teaspoons of Montreal seasoning and Worcestershire sauce. Remove from the heat and add half of the mozzarella cheese. Stir to combine.
Pour the cheese sauce over the pasta, then add the ground beef and vegetables, and stir until combined. Pour into a deep 9 x 13 casserole dish. Cover with the remaining mozzarella cheese.
In a bowl or large measuring cup, melt the butter. Add panko, parmesan and salt and mix with a fork until combined. Sprinkle over the top of the pasta.
Bake for 25-30 minutes until the edges are bubbly and the panko topping is golden brown.