Kielbasa and Potato Bake

1 can condensed cream of mushroom soup (10.75 ounce)
2 cups milk
1 tablespoon minced garlic
1 teaspoon salt
1/2 teaspoon ground black pepper
1 pound kielbasa sausage sliced thin
4 large russet potatoes peeled and cubed

Preheat oven to 375 degrees.

In a large mixing bowl, mix together soup, milk, garlic, salt, and pepper. Stir in potatoes and kielbasa. Spoon into a 7x11 inch casserole dish.

Place casserole on a baking sheet, and bake in the preheated oven for 90 minutes, or until potatoes are tender.