Taco Stuffed Pasta Shells

16 jumbo dried pasta shells, prepared according to pkg directions, rinsed and drained.
1 lb extra lean ground beef
1 pkg taco seasoning mix
1 cup water
1 can (16 oz) refried beans
1 cup shredded reduced fat cheddar cheese, divided
1 jar (16 oz) salsa, divided
1/4 c green onions
Sour cream (optional)

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.