Breakfast Burrito Casserole

Name: Breakfast Burrito Casserole
Ingredients: Nonstick cooking spray, oil or butter, for the baking dish; One 20-ounce bag refrigerated diced potatoes with onions; 2 tablespoons olive oil; 1 pound bulk breakfast sausage; 1 cup milk; 1/2 cup sour cream; 1/2 teaspoon seasoned salt, such as Lawry’s; 1/4 teaspoon freshly ground black pepper; 4 large eggs; 4 scallions, sliced; 1 red bell pepper, diced; 2 cups grated pepper jack; 1 cup grated sharp Cheddar; 1/2 cup jarred pickled jalapeno slices; Tortillas and salsa, for serving