Always heat thoroughly. Turn it frequently, cooking for about 8 to 10 minutes until it reaches the safe temperature. Grilling: Grill at medium-high heat for 8 to 10 minutes, turning frequently. Fresh kielbasa requires more finesse in cooking. Skillet: Cook in a non-stick skillet over medium heat, 10 to 12 minutes, turning frequently. This should take around 8 to 10 minutes in total. If you want the potatoes to get done and a little crispy on the outside, it’s best to cook the potatoes separately first and then add the kielbasa to the pan in the last 10 minutes or so of cooking.. To make kielbasa and potatoes in the oven in under 30 minutes: Kielbasa is traditionally made with pork and/or beef, but if yours contains any poultry, cook it to 165 degrees Fahrenheit. If it is thrown on the grill without any advance preparation, it's likely to be overdone on the outside before the inside is fully cooked. Let stand 2 minutes before serving. How do you cook kielbasa and potatoes in the oven? Alternatively, saute or fry raw kielbasa in a coated pan over medium-low heat. Microwave: Wrap each individual sausage in paper towels and place on a microwave-safe plate.Microwave on high 3¼ minutes (1½ minutes for one). The best solution is to precook the kielbasa by poaching it gently until the internal temperature reaches 165 F when tested with a meat thermometer. Since the kielbasa is already cooked, it doesn’t need much time in the oven.