Prepare the jambalaya mix according to package directions. Meanwhile, cut peppers lengthwise in half; remove seeds.
In a large skillet, cook and stir sausage over medium-high heat until browned. Add minced jalapeno (wear disposable gloves when cutting hot peppers because the oils can cause skin irritation--avoid touching your face); cook 1 minute longer. Using a slotted spoon, remove to paper towels to drain.
Stir the sausage into prepared jambalaya. Spoon into peppers. Place peppers in a greased 9x13-inch baking dish; pour tomato juice over and around peppers.
Bake, uncovered, in a preheated 350-degree oven for 40-45 minutes or until peppers are tender. Serve with your favorite hot sauce if desired.