When I make my tacos, I use ground turkey not only because it is healthier for you but I think it has a great taste. The turkey really adapts to the flavor of whatever spices you are putting on it because it is less fatty than beef. I start the dish by putting a little olive oil in a saute pan with diced onions and peppers. BTW, there is almost nothing better than the smell of onions sauteing, except when my mom makes her red sauce, but that's another blog post all-together! Once the onions and peppers start to sweat and become translucent, add your ground turkey (or any other meat you'd like). Make sure that it cooks until the meat is no longer pink. Then go ahead and add water and the taco seasoning. For your information, I don't measure any of these ingredients, I go by smell and taste because I've made this exact (very easy) dish so many times. The taco seasoning flavors will start to meld together with all of the other ingredients and the water will evaporate almost all the way. That is when you know dinner is served!
I use both hard and soft taco shells when we have Taco Night at my house. For this particular taco, I put out toppings such as guacamole, salsa, lettuce, tomatoes, raw onions and cheddar cheese. Usually I end up over-stuffing my taco shell so everything falls out onto my plate but I just eat that up with a fork!