Preheat your oven to 400°F (200°C).
Spread taco sauce evenly over the pizza crust.
Sprinkle cooked ground beef over the sauce.
Add shredded cheddar cheese on top of the beef.
Bake in the oven for 15 minutes or until the crust is golden and the cheese is bubbly.
Remove from the oven and let it cool for a few minutes.
Top with diced tomatoes and shredded lettuce.
Drizzle sour cream evenly over the pizza.
Garnish with chopped green onions and cilantro.
Slice and serve hot, optionally adding jalapeños for extra heat.