French Onion Baked Rice

I know this is going to be your favorite rice dish and will be perfect to add to your fresh garden vegetable meals. I've made this for 35 plus years. The recipe was from my dear friend Doris Mauldin. I'm so lucky to have so many of her wonderful recipes.

Serves 4

1 cup chopped onion
8 tablespoons (1 stick) butter
1 (10 3/4-ounce) can beef broth
1 (10/34-ounce can condensed French Onion soup
1 (4 1/2-ounce) can mushroom pieces, drained
1 cup uncooked white rice

Preheat oven to 350 degrees. Saute' onion in butter until almost tender. Remove from heat. Stir in broth, onion soup, mushrooms, and uncooked rice. Pour into casserole dish. Bake for about 1 hour, or until done.