This is a quick and easy sandwich that you almost always have all the ingredients on hand. I like to make these for a big get together with a crowd because I can make it up ahead of time and put the mix in a crockpot.
1 lb hamburger
1 medium onion, chopped
1/3 cup ketchup
2 Tbsp yellow mustard
1 Tbsp vinegar
2 Tbsp brown sugar
1/2 tsp garlic powder
Fry hamburger and drain off grease. Add in onions and fry for a few more minutes.
Add in rest of ingredients and heat through. Add more ketchup if it needs to be saucier.
***Note: These are also great cooked in a crockpot. Just fry up the hamburger and onion first before adding the rest of ingredients in crockpot.