Preheat the oven to 350 degrees.
Prep baking dish with nonstick baking spray.
Follow the directions on the back of the pasta package. Drain/ remove the pasta. Set aside.
Brown the ground beef in the pot.
Drain the fat from the ground beef from the pot.
Stir in the seasoning packet and water.
Continue to stir to mix well until the water is gone.
Add 1 cup of salsa, and stir to mix well.
Mix in 3⁄4 cup of shredded cheese.
Spoon the mixture into each cooked pasta shell.
Place each filled shell in the baking dish,
Top with the salsa and scatter the shredded cheese on top. Cover with foil.
Bake at 350 degrees for 15 minutes.
Serve.