Chicken Spaghetti

Ingredients

• 1 (3 lb.) chicken, cooked, deboned and cut into bite-size pieces
• 1 box spaghetti, cooked and drained
• 1 c. chopped onion
• 1 can cream of chicken soup
• 1 c. chopped celery
• 1 c. grated cheese
• 2 Tbsp. butter
• 1 small jar pimientos, drained
• 1 can cream of mushroom soup
• salt and pepper to taste
• 1 small can black olives
• 1 small jar mushrooms