Stouffer's Tuna Noodle Casserole Frozen Meal offers a quick, easy solution for lunch or dinner. The frozen dinners for one include freshly made egg noodles, tuna, mushrooms, celery, and peas in a creamy sauce. This classic frozen dinner is sure to satisfy every taste bud. This tuna casserole prepared meal contains 22 grams of protein per serving and contains no preservatives. Stouffers meals for one are easy to prepare in the microwave or oven, making this frozen tuna dinner a great choice when you're short on time. Keep Stouffers frozen pasta in the freezer until you're ready to enjoy.