Preheat your oven to 425°F (220°C).
In a large skillet, brown the ground beef over medium heat until fully cooked.
Add the pizza sauce, pepperoni, and Italian seasoning to the beef, stirring until well combined.
Spread the beef mixture evenly in a greased 9x13-inch baking dish.
Sprinkle half of the mozzarella cheese over the beef mixture.
Top the beef and cheese layer with the frozen Tater Tots, arranging them in a single layer.
Sprinkle the remaining mozzarella cheese over the Tater Tots.
Bake in the preheated oven for 25-30 minutes, or until the Tater Tots are golden brown.
Remove from the oven and let it cool for 5-10 minutes before serving.