Add garlic
Garlic is one of those things that you can just keep adding and you can never go wrong. The only vegetable that comes to mind that might follow the same rule is onions. Other than those two, we would safely say that you can use as much as you like with no negative consequences.
Just make sure that you do not have a date that night or are meeting a crush for drinks. Garlic does not make your breath smell nice at all and no matter how many times you brush your teeth, it will remain there. The smell comes from the stomach, not the mouth.