2Bring a large pot of lightly salted water to a boil; cook the rotini at a boil until tender yet firm to the bite, about 8 minutes; drain.
3Melt butter in a large skillet over medium heat; cook and stir onions until translucent, 8 to 10 minutes. Transfer onions to a large bowl and mix cooked rotini, tomato soup, hot dogs, corn with its juice, dill pickle relish, and yellow mustard into onions. Pour mixture into a baking dish.
4Bake in the preheated oven until bubbling and the top is lightly browned, about 1 hour.
Footnotes
Cook's Note:
When cooking, if you smell pickle relish or mustard the amounts of either should be adjusted. Brown mustard can be substituted for a little different flavor.
Ingredients
6 servings
684 cals
1 (12 ounce) package rotini pasta
1/4 cup butter
2 sweet onions, chopped
1 (26 ounce) can tomato soup (such as Campbell's®)
1 (16 ounce) package hot dogs (such as Oscar Mayer®), sliced 1/4 inch thick