Chicken Manacotti

from Tiffany Whitney
2 TBSP butter
¼ cup onion chopped
6 mushrooms finely chopped
1 cup chopped chicken breast
½ tsp salt
¼ tsp nutmeg
15 oz. Container ricotta cheese
1 ½ cups motzarella cheese
1 TBSP parsley
1 egg
Mix altogether and stuff in 14 (cooked) manicotti shells. Place in 9x13 pan. Cover with ¼ cup water and 1 jar spaghetti sauce.