#### **Step 1: Preheat & Prepare the Casserole Base**
Preheat oven to **375°F (190°C)**. Lightly grease a **9x13-inch baking dish**.
#### **Step 2: Cook the Meat**
In a large skillet, cook **ground beef or sausage** over medium heat until browned. Drain excess grease, then stir in **Italian seasoning, garlic powder, onion powder, and pizza sauce**. Simmer for **2 minutes**, then remove from heat.
#### **Step 3: Assemble the Casserole**
Spread the **meat mixture** evenly in the baking dish. Sprinkle **1 cup mozzarella cheese** over the meat. Arrange **tater tots** in a single layer on top.
#### **Step 4: Bake the Casserole**
Bake uncovered for **25 minutes**, or until tater tots are golden and crispy.
#### **Step 5: Add Pizza Toppings & Bake Again**
Remove the casserole from the oven and sprinkle the remaining **mozzarella cheese, pepperoni, olives, bell peppers, and Parmesan cheese** on top. Bake for **5-7 more minutes**, until the cheese is melted and bubbly.
#### **Step 6: Serve & Enjoy**
Let the casserole cool for **5 minutes** before serving. Garnish with **red pepper flakes or fresh basil** if desired.