NoBull Burgers are ok to go from refrigerator to freezer. In fact, we find that a frozen patty cooks up very nice.
Skillet: Add burger to oiled skillet, cook on medium heat 4-6min per side
Oven: Bake at 400 degrees on a lightly oiled baking sheet 6-8min per side
Grill: Grill burger 4-5min per side