Preheat the oven to 375°F. Spray an 8-inch square baking dish with nonstick cooking spray.
Unroll the crescent dough and press it evenly into the bottom of the baking dish.
Bake for 10 to 15 minutes, or until the dough is cooked through and golden brown.
While the crust bakes, cook the ground beef in a skillet over medium heat until browned. Drain the grease.
Place the cream cheese in a small saucepan over low heat. Add the taco seasoning and stir until melted, smooth, and spreadable.
Combine the sour cream and hot sauce in a small bowl.
Carefully transfer the baked crust from the square dish to a flat baking sheet. Leave the oven on.
Spread the taco-seasoned cream cheese over the crust.
Add the cooked ground beef and drizzle the sour cream mixture over the top.
Sprinkle the shredded cheese evenly over the pizza.
Return the pizza to the oven for 3 to 5 minutes, or until the cheese is melted.
Top with shredded lettuce and sliced tomatoes.
Cut the taco pizza into squares and serve warm.