This is a delicious side dish for any holiday meal.
Preheat oven to 350.
In a bowl add cream of mushroom, mayonnaise, cheese, beaten egg, garlic salt, seasoned salt and pepper and mix well.
In the same bowl add in the thawed chopped broccoli and mix well.
Pour the mixture in a 8x8 glass dish.
Sprinkle crushed ritz on top and finish with the diced butter on top.
Bake for 40-45 minutes or until sides are bubbling.
Enjoy!