Spaghetti Casserole - cooking recipe

Ingredients

1 onion, sliced
1 jar mushrooms, sliced
6 slices bacon, cooked and crumbled
1 can tomatoes
1 c. black olives, sliced
3 c. chicken
3 c. shredded Cheddar cheese
1 lb. spaghetti, cooked

Preparation

Mix first 5 ingredients in a large saucepan and let simmer for 30 minutes.
Add chicken and heat until warm.
Layer spaghetti sauce and cheese in a 9 x 13-inch pan.
Bake at 350\u00b0 for 20 minutes.