1 (15 ounce) can diced tomatoes
1 (16 ounce) can sliced mushrooms
1 (5 ounce) can frozen cream of mushroom soup
3 (8 ounce) packages cream cheese
1 cup white sugar
3 cups diced green olives
18 fluid ounces milk
1 quart heavy whipping cream
1 (3 ounce) package instant vanilla pudding mix
3 cups miniature marshmallows