Made this for a dinner party and the crowd loved it!

1 cup wild rice, rinsed
2 cups chicken broth
1 lb boneless, skinless chicken breasts, cooked and shredded
1 small onion, chopped
2 stalks celery, chopped
1 cup sliced mushrooms
2 cloves garlic, minced
1 can (10.5 oz) cream of mushroom soup
1 cup sour cream
1 cup shredded cheddar cheese
1/2 teaspoon dried thyme
1/2 teaspoon dried rosemary
Salt and pepper to taste
2 tablespoons olive oil