If you're using a cauliflower crust: Preheat oven to 450 degrees. Place the frozen cauliflower crust directly on the oven rack and bake for 10 minutes on each side, turning carefully.
Dice chicken breast into 1" pieces and place into large ziplock bag or mixing bowl. Season with salt and pepper and pour 1/2 cup buffalo sauce over top. Let marinate for at least 10 minutes (on the counter) or up to 24 hours in the refrigerator.
Warm 1 tbs. olive oil in a skillet over medium heat, then add buffalo chicken using tongs to shake off extra sauce. Cook for about 5 minutes, tossing to cook all sides. When cooked, remove from heat.
Meanwhile, cook the bacon your preferred cooking method -- I placed the bacon on paper towel on a plate and cooked in the microwave for 2.5 minutes per side. Let cool and then crumble.
After the cauliflower crust has cooked, top with 1/2 cup of pizza sauce, then the cooked buffalo chicken, bacon crumbles, then the mozzarella cheese. Bake for 10 minutes or until cheese is melted and bubbly. Drizzle on more buffalo sauce and green onions, then let cool slightly before slicing!