This doesn't have to be thawed first. Nope. Just put your sausage in the pan, run some water until it covers them, bring to a boil, then reduce heat and lightly boil or simmer until the insides are 165 degrees. Our sausages come fully cooked.
Prepare the Sausages from Frozen
I like mustard on mine, but my hubby decided to go fancy. His involved opening the bun, setting them in the toaster oven for a small amount of time. Then, spreading a light coating of chive and onion cream cheese, some dill pickle slices, some minced onion, and some yellow mustard.