cooked bacon in small pieces, you can use hormel real bacon in the jar, go to a salad bar and just get the bacon or cook it yourself. what ever is easiest for you. you don't have to use bacon if you don't want to but it adds a nice flavor.
milk or coffemate liquid creamer. i usually use a little of both.
onion - chopped. you can use onion flakes (1/2 cup) but i think the fresh tastes better.