If you're a vegetarian, you can still enjoy a delicious Instant Pot Ground Beef and Rice dish. Use a meat substitute: Instead of using ground beef, you can use a meat substitute such as crumbled tofu or textured vegetable protein (TVP). Add more vegetables: As mentioned earlier, adding more vegetables is a great way to increase the nutritional value of your dish. You can add vegetables such as mushrooms, zucchini, and eggplant. Add more beans: Replace ground meat with more of your favorite bean. Use vegetable broth: Instead of using beef broth, use vegetable broth to give your dish flavor.