- 22 jumbo pasta shells
- 2 cups water
- 1 cup instant mashed potatoes (such as Idahoan® Baby Reds®)
- 1 cup French-fried onions
- 1 cup shredded Cheddar cheese
- 2 tablespoons bacon bits
- 1 jalapeno pepper, diced
- 1/4 cup butter
- 1 onion, chopped
- Preheat oven to 350 degrees F (175 degrees C). Grease a 9×13-inch baking dish.
- Bring a large pot of lightly salted water to a boil. Cook pasta shells in the boiling water, stirring occasionally until tender yet firm to the bite, about 9 minutes. Drain and arrange at the bottom of the baking dish.
- Measure 2 cups of water into a microwave-safe bowl. Microwave on high to bring water to a boil, 4 to 5 minutes. Remove water from microwave and immediately add instant mashed potatoes, using a fork to moisten potatoes. Cover and let stand, about 5 minutes.
- Stir French-fried onions, Cheddar cheese, bacon bits, and jalapeno into potatoes; mix well to combine. Stuff each pasta shell with a heaping teaspoon of the potato mixture.
- Melt butter in a skillet over medium heat. Add onions; cook and stir until translucent and softened, about 5 minutes. Pour butter and onions over stuffed shells. Cover baking dish with aluminum foil.
- Bake stuffed shells in the preheated oven until golden, about 45 minutes.