Chicken Manicotti

2 tbsp. olive oil
1 tbsp. garlic powder
1 ½ pounds boneless, skinless chicken breasts
10 uncooked manicotti shells
1 jar spaghetti sauce
1 can mushrooms
2 cups shredded mozzarella cheese
2/3 cup water

*Cut chicken into 1 inch strips and brown in olive oil and garlic powder. Spread 1 cup of spaghetti sauce in aluminum 9x13 pan (smaller if dividing). Stuff chicken into uncooked manicotti shells and place on top of spaghetti sauce. Top shells with mushrooms and pour remaining sauce over the top. Sprinkle with cheese. Pour water around edges of the dish. Cover with plastic wrap, then foil. Freeze. Remove plastic wrap under foil before baking, recover with foil. Thaw and bake at 375 for 50-60 minutes or until pasta is tender.