Hillshire Farms makes a brand I've had before and they are tasty. They are small sausages that are made with pork, beef and turkey and come fully cooked but the disclaimer says always heat them thoroughly before serving. Here are the nutrition facts for this brand:

Serving Size: 5 links (50g)
Per Serving:
Calories: 160 (Fat Cal. 130)
Total Fat: 14g (Sat Fat 5g, Trans Fat 0g)
Cholest. 35mg
Sodium: 500mg
Total Carbs: 2g
Fiber 0g
Sugars 1g
Protein 6g