Preheat the oven to 350 degrees. Prepare casserole dish by spreading with non stick cooking spray. Set aside.
Boil egg noodles as per package instructions to al dente. Drain well.
In a large dutch oven, brown ground beef. Drain excess oil if desired. Season the cooked ground beef with Montreal Steak seasoning. Add onion and sauté for 5 minutes until the onions are soft. Remove from heat.
Add the mushroom soup and evaporated milk to the ground beef mixture and mix well to combine.
Next add the noodles, stir well and mix everything together.
Pour the creamy beef stroganoff into prepared casserole dish, top with shredded cheese. Cover with aluminum foil and bake for 30 minutes until hot and bubbly.
Remove foil, place under broiler. Broil for 3-5 minutes or until the top of the casserole dish is browned. Garnish with fresh parsley, enjoy!