To prepare the lasagna rolls in advance, roll them up, add the sauce and cheese and cover with foil and place in the fridge until ready to bake. I've made them a day before baking and they were still great. To freeze, bake and let cool to room temperature. Place in a freezer container and freeze. Reheat in the microwave. You can place a whole pan in the freezer and heat back up in the oven, but I like to freeze the rolls in individual servings for easy lunches and dinners.