ambrosia recipe

1 cup sour cream or Greek yogurt 1 cup whipped topping (like Cool Whip) 1 cup mini marshmallows 1 cup sweetened shredded coconut 1 (11-ounce) can of mandarin oranges, drained 1 (8-ounce) can of pineapple tidbits, drained 1 cup maraschino cherries, drained and halved (optional) 1 cup diced fresh or canned mixed fruit (such as apples, grapes, bananas, or strawberries, optional)