Sauerkraut & Kielbasa Grilled Sandwich

Name: Sauerkraut & Kielbasa Grilled Sandwich
Prep time: 8 min
Cook time: 8 min
Total time: 8 min
Yield: 1
Cuisine: Global
Ingredients: 2 slices swiss cheese or monterey jack cheese (for spicy); 3 Tbsps prepared oktoberfest mustard; 4 Tbsps sauerkraut (fresh, jar or canned); 1 bakery-style bun, sliced in half (i use onion buns); 8 slices turkey kielbasa (1/4 inch thick)