Beef Burgers - cooking recipe

Ingredients

2 tbsp olive oil
1 None onion, finely chopped
1 lb ground beef
1/4 cup fresh breadcrumbs
1 tbsp chopped fresh parsley leaves
1 None large egg, lightly beaten
2 tbsp tomato sauce, plus extra to serve
4 slices Cheddar or American cheese
4 None hamburger buns, toasted
None None romaine leaves, sliced tomatoes, sliced beets and ketchup, to serve

Preparation

Heat 1 tbsp oil in a nonstick frying pan over high heat. Saute onion for 3 mins, or until softened. Let cool then transfer to a large bowl along with ground beef, breadcrumbs, parsley, egg and tomato sauce. Season to taste then shape into 4 burgers.
Heat remaining oil in a frying pan over medium-high heat. Cook burgers for 3-4 mins per side, or until cooked through. Add a slice of cheese and cook until melted.
Transfer to burger buns with remaining ingredients. Serve with extra tomato sauce.