This is a recipe that my grandma would always make for us for dinner. We always used green peppers and fresh tomatoes as a topping for this but you can easily add in any vegetables to this dish.
You can replace the peppers and tomatoes in this recipe with 1 1/2 cups of whatever vegetables you like. I have used corn, black beans, green onions, zucchini, mixed vegetables, broccoli, cauliflower, and squash. The possibilities are endless.
You can also replace the ground beef with ground turkey, ground chicken, sausage, or chicken breast.