My favorite way to reheat the sandwiches is to remove it from the freezer and unwrap. Toast the english muffin bread and microwave the egg/cheese/sausage on a plate for 1 minute and 30 seconds. Or you can microwave the entire thing for about 2 minutes, until warm. If you don't want to use a microwave, bake in a preheated 350 degree oven until warm, or air fry.