Preheat the oven to 400 degrees Fahrenheit. Heat the Italian sausage in a pan until just cooked, breaking it into pieces with a spatula as it is cooking. Set aside. Heat the tomato sauce, olive oil, oregano, pepper, and basil in a saucepan until hot but not boiling, stirring every couple minutes. Taste and add salt if necessary.

Roll out the dough on a lightly floured surface to your desired thickness and shape. Transfer the dough to a baking pan. Evenly spread the tomato sauce on the dough, leaving a 3/4 inch border on the dough for the crust.

Sprinkle 3/4 of the Gouda cheese over the sauce, then evenly disperse the sausage and onions on top of the Gouda. Sprinkle the remaining Gouda over the pizza. Place the pan in the oven and bake for 15 to 20 minutes, or until the crust begins to turn golden brown.