One and one-half cups of canned diced tomatoes can be used in place of the fresh chopped tomatoes. Drain them well.
Bring the mixture to a boil as directed in the recipe. Spoon mixture into a microwave-safe casserole. Cover and microwave on HIGH for 2 to 3 minutes, or until liquid is absorbed. Uncover and top with tomato slices and cheese; microwave on HIGH for 1 to 2 minutes, or until cheese melts.
To make Cheesy Beef Stuffed Baked Tomatoes, prepare the recipe but do not top it with tomato and cheese. Spoon the baked mixture into 8 large hollowed-out tomatoes. Arrange the stuffed tomatoes in a shallow baking dish and sprinkle with shredded cheese. Bake at 400 °F. for 5 to 10 minutes, or until the tomatoes are hot and the cheese melts.