Chicken Cacciatore

3 chicken breast halves without skin -- cut into 1" pieces
1 tablespoon olive oil
1/2 onion -- thinly sliced
1 jar spaghetti sauce
3 tablespoons italian seasoning
5/8 pound mostaccioli
1/3 cup parmesan cheese
Cook chicken and onions in olive oil. Add italian seasoning. Cook 5-10 more minutes.
Add jar of spaghetti sauce (Classico Tomato & Basil is good). Freeze in 1-gallon ziploc
bag.
Thaw and serve over cooked mostaccioli pasta. Top with parmesan cheese.