Cook beef in a large skillet until brown; drain. Add seasoning mix adn water; cook over low heat for 5 minutes or until thickened.
Add beans and 3/4 c cheese; mix well. Spread 1/4 c salsa over bottom of each of the 2 8" baking dishes.
Fill pasta shells with beef mixture; place half of the shells in each baking dish, filled side up. Spoon remaining salsa over shells.
To Freeze: Freeze in freezer to oven safe container.
To Reheat: Heat oven to 375. Cover with foil and bake for 45 - 50 minutes or until heated through. Sprinkle with green
onions and cheese and serve with sour cream if desired.