Proper American Hamburger

Name: Proper American Hamburger
Total time: 20 min
Yield: 4
Ingredients: salt, to taste; onion, as needed; mustard, to taste; tomatoes, as needed; ketchup, as needed; 4 slices of cheese; 500 g ground beef; lettuce, as needed; pickled cucumbers, as needed; ground black pepper, to taste; 4 hamburger buns; barbecue sauce, as needed