Cook chicken and slice into bite size strips. cook and drain noodles, toss in mushrooms, chicken and olive oil, place in large casserole dish. pour half and half into large sauce pan and whisk in garlic powder, seasoned salt and black pepper and bring to light boil being careful not to let it foam over, slowly add parmesan cheese while stirring and let simmer 1 to 2 minutes. pour sauce over noodles and toss together, sprinkle fried onions over top, cover and bake at 300 degrees for 10 to 15 minutes. serve with salad and garlic bread.