Preheat the grill to approximately 500 degrees

Roll out the pizza dough to approximately 12x14 and place on a cutting board or cookie sheet to transfer to grill. Use flour if necessary to get it to not stick when rolling it out

Place the pizza dough on the grill and cook for 1-2 minutes or until pizza dough begins to lift off the grill. Flip and repeat. Remove from grill and let cool for a few minutes before adding toppings.

While you're waiting for the grill to heat up, cook the fennel, sausage, and onion together in a pan over medium heat. Cook until sausage is cooked through, approximately 7-10 minutes.

Add marinara sauce to the pizza dough and spread to approximately 1" from the edges.

Add dollops of ricotta across the entire pizza.

Sprinkle 1 1/2 cups of cheese across the entire pizza.

Spread the fennel, sausage, and onion out over the pizza. Cover with the remaining 1/2 cup of cheese. Top with green onions if using

Place the pizza back on the grill and cook until cheese has melted, 1-3 minutes.

Remove from grill, let cool slightly for cleaner cutting, cut and serve.