Prepare burritos as directed through Step 5, except do not add chopped tomato to filling. Wrap each burrito in foil and place in a freezer container. Freeze for up to 3 months. To reheat, place frozen burritos, loosely wrapped in foil, on a baking sheet and heat in a 350 degree F oven about 30 minutes. Open foil and bake for 10 to 15 minutes more or until heated through.