Preheat oven to 425℉.
To make the dough: Mix the water, yeast, and sugar together. Let the mixture sit for about five minutes, or until it becomes slightly foamy on top.
Add the flour and salt to your mixer bowl, then make a well in the center. Pour in the oil and yeast mixture. Using a dough hook, mix on medium-low speed until the dough pulls away from the sides of the bowl and forms a smooth ball. With slightly floured hands, remove the dough hook and place the bowl in a warm spot. Cover with a towel and let the dough rest for 10 minutes. Brown the ground beef in a skillet. Drain the excess fat, then add the taco seasoning. Follow the package instructions by adding about 1/3 cup of water and cooking until the liquid reduces.
Roll or press the dough out onto a pizza stone. Spread an even layer of taco sauce over the dough. Top with the seasoned ground beef and shredded cheese. Place the pizza in the oven and bake for approximately 15 minutes, or until the cheese is melted and the dough is cooked through. Once baked, top with lettuce, corn chips, sour cream, or any other desired toppings. Serve immediately.