8 ounces sirloin steak meat, trimmed and cut into 1-inch cubes
8 ounces chuck steak meat, trimmed and cut into 1-inch cubes
8 ounces lamb shoulder meat, trimmed and cut into 1-inch cubes
Kosher salt
4 ounces grated Cheddar, smoked if preferred
4 hamburger buns
Mayonnaise