Pan fry your sausage patties until they're done. Sausage patties are considered safe to eat when cooked to 160 degrees Fahrenheit. However, poultry sausage patties must be cooked to 165 degrees F. Remove the sausage patties from the pan and let them cool to room temperature.
Cut wax paper into squares measuring slightly larger than the sausage patties. So, if your sausage patties measure 2-inches in diameter, cut the wax paper squares so that they measure 3-by-3 inches. Wax paper makes it easy to remove the sausages from the freezer one at a time, without having to thaw the whole stack just to dislodge one.
Stack the sausage patties, placing the squares of wax paper between them. Wrap the entire stack of cooked sausage patties in wax paper, and place it in a resealable freezer bag or container. Sausage patties keep in the freezer for up to 3 months, according to the USDA.