Onions, tomatoes, fried garlic, salt, egg, 1 tablespoon olive oil and lean minced beef. Normally, fatty minced beef is recommended for juiciness and moisture. However, I use lean minced beef but add olive oil and tomatoes for juiciness and moisture.
Mush it all up.
Shape into patties and fry on medium high heat for 2 minutes on each side to seal in the juices. Place in a toaster oven for 15 minutes to cook the patty all the way through. We like ours well done.
Make your hamburger tower with bread, cheddar cheese, slices of fresh tomatoes, onion marmalade and mushrooms.