In a bowl, with your hands or a fork, mash up your grass-fed ground beef, your veggies and some sea salt and pepper together. Then, form six balls/patties with your hands.
Add a little olive oil or grape seed oil to a large sauté pan on medium to high heat. Add the beef on the pan and flatten it down with a spatula into a patty shape.
Cook your ground beef on medium-high heat for at least 5 minutes on each side until they turn nice and brown. Cook more or less depending how rare or well-cooked you want it.
Toast some the sprouted grain buns in a toaster or broiler for the burgers and add your patties to the toasted buns. Finally, add in slices of onion, tomato, lettuce, ketchup, and mustard for a classic burger.