Stuffed peppers make a terrific gluten-free entre because the ingredients are naturally gluten-free and this dish is so hardy and delicious. Ground beef, onions, tomatoes, rice, cheese, and seasonings all packed in a healthy fresh bell pepper makes great use of economical, simple ingredients. Although this dish takes some time to prepare, it can be prepared a day or two in advance of serving for convenience. Of course, you can also freeze cooked stuffed pepper so this filling entre is ready when you are