Preheat oven to 425 degrees Fahrenheit with a pizza stone inside.

Sprinkle 12-inch pizza pan with corn meal.

Shred mozzarella cheese.

Dice tomato.

Chop green onions.

Finely chop garlic.

Roll and stretch the dough into a large circle and place on prepared pizza pan. Spread desired amount of alfredo sauce onto pizza. Top the sauce with garlic. Add mozzarella cheese, chicken, tomato, green onions, and more cheese. 

Bake at 425 Fahrenheit for 20-25 minutes.