750g beef mince (like topside)
1 large brown onion, grated
2 garlic cloves, crushed
1 tablespoon Worcestershire sauce
2 teaspoons Tabasco sauce (optional), or to taste
1/4 cup chopped fresh continental parsley
70g (1 cup) breadcrumbs, made from day-old bread
1 egg, lightly whisked
Salt & ground black pepper, to taste
2 tablespoons olive oil
6 hamburger buns, halved
150g cheddar cheese, thinly sliced, to serve
3 medium (about 450g) ripe tomatoes, sliced, to serve
Tomato sauce, to serve
6 iceberg lettuce leaves, shredded, to serve
1/3 cup American mustard (optional)
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